- 88.0LEGITIMACY SCORE
- 89.0SAFETY SCORE
- 4+CONTENT RATING
- $5.99PRICE
ISip -VOIP Sip Phone App User Positive Comments 2024
ISip -VOIP Sip Phone app received 89 positive comments and reviews by users. Can you share your positive thoughts about isip -voip sip phone?
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ISip -VOIP Sip Phone for Positive User Reviews
✓ It just works !Simply works ! I'm using voip.ms in Montreal and this app works as well as a standard phone. Called this morning a cell phone in France and it works perfectly. Just one concern, using +336xxxx was not working but 011336xxxx did work perfectly..Version: 0
✓ Le meilleur des logiciels s'ilIl n'y a aucun délais car tout s'exécute directement sur votre iPod. Le prix est très raisonable pour la qualité de ce produit..Version: 0
✓ BetamaxGreat with betamax voip provaiders.Version: 0
✓ A great SIP AppI was on the fence about getting this app. I was very glad that I did. I was able to attach it to both my Cisco UCM 6.x and 5.x clusters with no issues. I used the Third Party SIP (basic) phone. Calls work great and have pretty good voice quality. I have not tested the VPN yet but don't see any issues. I didn't give the app 5 stars due three things (two controlled by Apple). 1 - you cant run this app in the background 2 - unable to use on the Edge/3G network 3 - graphics are unrefined.Version: 0
✓ Outgoing sound quality suffers in version 1.1.11Previous version(s) worked very well. Like the new GUI, incoming sound quality is better. However... on ipod Touch 2g with current Apple headphone with mic, the outgoing sound quality is VERY bad. Vendor says it was bug in new microphone level settings; new version is on its way (since 4/24). I would have given this a four stars if not for the outgoing sound quality. My other sound-based apps / voip apps are working fine, so this is not a problem with the touch..Version: 0
✓ MynetfoneCan you tell about how to use the 5070 port in settings for mynetfone? Thanks.Version: 0
✓ Great app, needs Bluetooth supportGreat app! Works much better than Fring, and the sound quality is great. Using CallCentrix for my VoIP provider. Would be nice to have G.729 codec support... If you can add Bluetooth and G.729 support, I'd give you 5 stars. The G.711 codec is somewhat acceptable, but not great. GSM codec works very poorly for me, even with high bandwidth wifi..Version: 0
✓ Good ApI'm quite happy with this ap.. Because it's direct to your own SIP server it boots quicker and has better clarity than Fring or Nimbuzz. Probably my only gripes are the keypad layout looks cheap. I would much prefer it to emulate the iPhone keypad. And the lack of contact names in the recent call list. Other than that it's simple but works great..Version: 0
✓ Best VOIP App for the iPhone/TouchI have used all the VOIP application in the App Store and in my view this is the best. Using VoipStunt as my SIP provider I got hardly any delay and call quality has been excellent. The guys at Vnet Corp are enthusiastic and answered my query promptly and in a positive manner (see their website). SipPhone will also work on a 1st generation Touch as long as you have firmware 2.2 and above plus a suitable doc based microphone. Well worth the money and I would give it 5 stars if they tidied up the interface a little and maybe added additional features like SMS. Just like to add that although Fring is free, Fring uses a proxy server(s), while SipPhone is a native sip voip client, This means that call quality (and I have made dozens of tests) is far better than Fring. In fact it's as good as or better than TruPhone. This is using Voipstunt as my SIP provider. Moreover, Voipstunt (like many Betamax providers) offers free calls to many international landlines. However, because Fring uses a proxy server I could not get my free calls. With SipPhone this is not a problem. Bottom line is I have already saved the cost of the app and more - call quality as good as TruPhone and free. If you love voip get this app..Version: 0
✓ This app works great!I have this app working just fine between two of my asterisk servers. Call transfers and alternative voicemail config was a nice add. I'm gonna put a copy on my wifes phone for when we go to France. Keep it up and thanks! I was having a problem with this app when I first bought it but it turned to be the router I was using..Version: 0
✓ The answer!Cheap calls, especially to landlines. Works well. Only problem is that recent calls don't show names of called parties. Use with Sipgate or other VOIP SIPs..Version: 5.1
✓ Great AppI love it when U buy an app and it does exactly what it says it does. Good solid piece of gear :) Thanx guys..Version: 0
✓ Best SIP Client for NodephoneI've had headaches for about a year trying to find a SIP Client that didn't cut off my Nodephone calls. This is perfect. Tried the free and I had a stable Nodephone call in action about 60 seconds after I downloaded it. Picked up the full for the extra features such as the keypad in-call, push notifications and contacts list. If you've got Nodephone give this a shot..Version: 0
✓ How to work in backgroundThis is the developer, IOS4 does not support UDP running in the background. So we still use the push notification service to receive the incoming calls in the background. With the selection of our public push server or your local private push server (if your sip server can't be reached by our public push server), you should have no problem to receive the calls when the app is in the background. You can download the private push server vmware image from our website. Just make sure you have set up the virtual server's interface to bridge mode, so your isip can talk with the virtual server. The IOS4 support gives you the possibility of doing VOIP calls in the background and do other work in foreground. You can also go back and continue VOIP calls after the VOIP call is interrupted by cell calls..Version: 0
✓ It works!I was scared to try because of the negative reviews however I saw several that said it works with CCME so had to try. I set it up to our regular call manager 6.x and it works. The only caviot was you do have to create a user account the same as your extension. 4 stars because of the echo. Very faint on the land line side. Sounds great on the iPhone. Works though VPN also. Tested at starbucks at lunch..Version: 0
✓ Excellent little appThis app works brilliantly. I have SIP accounts with voipfone and have no problem using this app to connect to them. I've not used it through 3G so can't comment on how well it performs over a cellular network, but the main reason I got it was so that I could make calls over wifi when abroad to keep my costs down and it does this brilliantly. Well done guys, £3.49 well spent..Version: 0
✓ Good very goodGood softphone for asterisk server Work great with my Elastix PBX.Version: 0
✓ Works well with AsteriskThis app works well with Asterisk servers. Had it up and running in less than 10 mins of downloading. The only "bad" about this app is that it's a bit slow to load. I guess it could need a bit polishing on the UI side too, but hey ... can't ask for everything ... works as advertised..Version: 0
✓ A little pricey but very goodI have been using this application for months with multiple accounts, no problems so far. Sound quality is very good, much better than fring. Their support responds to emails quickly. I believe it totally worths 7 bucks... 5 stars from me!.Version: 0
✓ Works Great With BroadVoice VoIP!The app has worked beautifully for me. Not being a "techie," it only took a few settings and my BroadVoice account was up and running. I cannot say enough good things about this app! I have tried several others, but the quality was lacking. Thanks, guys!.Version: 0
✓ Best sip client on app storeAfter playing with fring, nimbuzz and some others I decided to pay the $ and try out SipPhone and boy am I glad I did! It is head and sholders above the rest! Get this app if you are looking for a sip client..Version: 0
✓ Good quality, good options, easy and works wellIv'e used a few SIP clients and most have limitations (either use Proxies, have weak integration, or simple crash a lot), this one doesn't. We are a VOIP reseller for various manufacturers and so we've tested a few configs and iSIP has worked in all cases. There have been various negative comments posted by others, which I suspect are as a result of poor/wrong configs. e.g. someone said doesn't work over VPN's, it does. We do occassionally have to restart APP but we have to restart ALL apps on phones now and then. Only problems experienced is transfer issues and Voicemail. All in all one of the better SIP clients.Version: 0
✓ Exactly what I was looking forI've been using voipbuster for a long time and I needed a sip phone program. This one works like a charm with voipbuster and the sound quality is excellent. Quite happy with the price as well..Version: 0
✓ Nice app but...Crash sometime for no reason.Version: 0
✓ Best user interface that works with AsteriskDownloaded 5 "SIP compatible apps" only to have iSip & WeePhone work with our internal Asterisk PBX. This app has decent call quality and has by far the best user interface of the apps that worked. I can now make phone calls from the bottom floor of our building that has no AT&T reception but excellent WiFi coverage. Save your self the cash of testing 5 apps and just purchase iSip..Version: 0
✓ Works like a champ to Cisco CallManager 6.1 and Cisco CME.I've found this to be a pretty foolproof WiFi SIP client connected back to either a Cisco CallManager 6.1 or Cisco CME without issues. Their forums contain extra information from others who have done this, including setup options. Now if we could just convince Apple and AT&T to play nice and allow VoIP apps to work over 3G. As it stands, you can run this app when on any WiFi network (or over VPN when on WiFi) but you will not be able to use it over 3G or Edge except in the standard "cellular" settings..Version: 0
✓ PresidentCool... We have an IP Based PBX in our office. I purchased this little app so that I could connect to the office phone system at any hotspot. It registered ok but the audio didn't work. We submitted a ticket to Vnet corp and they responded immediately; had us provide them with 2 test accounts. They found an internal problem with our phone system and identified exactly what was wrong with our equipment. It works great. This is a really cool app..Version: 0
✓ The latest update did improve audio!Looks like they did improve the audio quality a lot. There is almost no voice delay now over wifi. voice over 3G is also pretty good. I was able to make call while driving on highway, which was always problematic in previous version. Many thanks to the developer!.Version: 0
✓ Finaly an open VoIP clientHave been looking for something like this for a while. Works awsome. I have been using it for a few days now and it is truly amazing. I would like to see a few more audio codecs, but I am sure they will come with time..Version: 0
✓ Great ConceptAnother + for iPhone/iPod Touch..Version: 0
✓ AwesomeUsing it with my iinet voip and it works awesomely. Really impressed with the product..Version: 0
✓ New version keep deleting my accountHi I have been using this apps for quite awhile. No problem till I use the latest version. Can you fix the bug in your program? My account is always being remove after I close the app. Thanks.Version: 4.9.1
✓ Transfer pleaseAt last I can have my iPhone as a work extension The ability tontransfer calls to another extension as with other software voip phones would be great.Version: 0
✓ Works as advertisedWe set this up with our business voip, works great. Would be good to see some other audio codecs but this is the best SIP voip app so far..Version: 0
✓ Works suprisingly well!This was the first SIP application that I found for the iPhone (been looking for a while) and it actually works very well. Plugged in my SIP account and it worked flawlessly, traveled all through south america using it as a phone at hotspots. Recommended if you have SIP account, simple and effective..Version: 0
✓ Perfect for multiple VOIP accounts!Quick setup with Mynetfone, faktortel, Maxotel! Am using it for 4 MNF/ 2 other numbers and it was simple to set up for all providers. Interface could use some visual improvement, but it works very well! Highly recommended!.Version: 0
✓ Easy to useThis is a great app. It was very easy to set up and it worked straight away. I will be using this all the time. The only complaint I have is the logo which is shown above the dialing screen. It wastes valuable screen space. We have paid for the app already so we don't need the advertising of your company..Version: 0
✓ Best PDA SIP client so fatComing recently from Windows Mobile I didn't expect much from SIP clients on a PDA but this thing is great. Had one problem with static on outbound audio which developer addressed quickly. Using with asterisk and am very happy - the only limitation (at least in the way I use) it is foreground use only which is an iPhone issue, not an issue with this app. Recording may come in handy too! If you need a SIP client then give this one a shot..Version: 0
✓ Best Quality VoiP Application in the App store to date!This VoiP application so far beats everything out there including TruPhone and Fring. I was looking for an easy to use VoiP application with voice quality and easy use being the most important factors to me. At first I was a little hesistant to spend $7 on a small app like this, but the voice quality I got in return for this is truly amazing - a clear advantage compared to Fring. And unlike TruPhone, you don't have to use their SIP Service, you can just choose whichever SIP provider you like. It was very easy to set up and dialing straight from your address book works like a charm. Compared to Fring you also don't have to wait until all your services are connected. The app takes like 3 seconds to load and you can dial right away. The only things I personally dislike are the look of the interface. I wish it would blend in more with the iPhones native applications. Preferably I would like everything to look like the iPhones regular dialer. And setting your caller ID to your regular cell phone number would be nice. Of course making those iP calls using the 3G network would be even better, but unfortunately as we all know this is not something Apple's Mobile Phone partners would like to see which is probably one reason this is not included in any of the VoiP apps that are currently available for the iPhone..Version: 0
✓ Great AppGreat App! Support is strong & timely. Worth every cent. Add IP over 3G & it wood be the best app ever for the iPhone! Keep up the good work.Version: 0
✓ It works great!I have used it for a couple of weeks. I set up my Voipon (UK) account and incoming and outgoing calls work perfect in both 3G or Wifi. When I receive a call, if the app is closed, I will receive a Push Notification, allowing me to take the call. Even when I am in the street connected by 3G. THAT IS GREAT! Support have answered promptly to me when requesting some information about the acc config. Some times, when 3G is not very good the quality of the voice decrease. (It's logic). The Developer needs to keep working on the UI (I think is very poor) and also the ring tones options. Other than that, for the moment the best Voip App I have tried..Version: 0
✓ Brilliant!Forget the naysayers. Some people are never happy. This app does exactly what it says it will. Great support too. Exactly what I'd been hoping for. Well done!.Version: 0
✓ Great product and easy configExcellent product. Config is very easy: just had to select my SIP provider (Callcentric) ID and password. Works flawlessly..Version: 0
✓ Easy to use works every timeI love this Sip client. I find it easy to use and setup..Version: 5.2
✓ Slow launching, clunky interface, but voice quality is very good.I am using voip.ms for 1¢/minute calls, and aside from this app's slow launch time and slightly clunky interface, I am very happy with it for outgoing calls. Incoming calls are not realistic because the iPhone can't run applications in the background (to accept calls the iPhone needs to be awake, and the application needs to be running). But for outgoing calls over wifi only, it's excellent. Even useful as a backup line as most VOIP providers will allow simultaneous calls. Unless you've been blessed with a generous amount of minutes on your cell plan, I see no reason why anyone shouldn't run this app. That is until someone else builds a faster, more elegant app..Version: 0
✓ Hipath sip ext via wifiThis app is working great, the latest patch fixed clicking sound when I spoke only on called party end. Keep up the good work guys.Version: 0
✓ Works great without fussI downloaded this and was up and running with my voip.ms account in seconds. Well worth the price..Version: 0
✓ ConsultantThis is a great app. I use it with VONO in Brazil and Broadvoice in the US and both work perfectly. I travel a lot internationaly and this app saves me a ton of money and I can call more often. I consider this app a must have for a road warrior. I use it with 3G, 16G, and ver 2.2.1. Very much worth the price..Version: 0
✓ AwsomeJust used it with my *****jack SIP info and it worked perfect. This will save a ton of my outgoing minutes. Features I think would put this app way over the top are: * Option to record calls. * Option to change the sound of voice. * Option to set # sent in caller ID..Version: 0
✓ Great StartWorks great easy to setup. The only thing I hope to see is further improvements. Voice quality and delay are a little shaky compared to other free VoIP apps available to jailbroken phones. Thank you..Version: 0
✓ Keep the updates coming...Great SIP app - very straightforward setup and use. I notice a few changes in 2.2 that might have been better left alone - like the ability to disable Cellular access. Very handy to ensure you don't accidentally make the call over the wrong network. Also, I am almost CERTAIN I made VoIP calls over 3G with version 2.1 - even though it wasn't supposed to be supported. Lets get that feature back! Also - Bluetooth headset support is an absolute must. Keep up the good work..Version: 0
✓ The best SIP appCompare to Fring & Siphon, this is the BEST..Version: 0
✓ Better than fring for SIP voipThe app is a bit pricey but rock solid and has speakerphone. Voice quality is great and there is no delay, like using a normal land line. Using fring before but there was always a bit of a delay when using voip. I guess you gotta pay for the better quality. All it needs are better graphics..Version: 0
✓ SipLatest update works great - had problem with crackling until I updated iPhone to v3. Update is good. I use this at work with my voip provider. Only problems are receiver complains about echoes. Also sometimes I can't hear ringing when I dial..Version: 0
✓ BroadVoiceWorks great with Broadvoice. Crystal clear after hours upon hours of use. Complaints: When Within app when in contacts cannot click on address to pull up maps, cannot click on email links for contact either? Bluetooth is also a no go for your headset. Plz fix those points and you have five star app..Version: 0
✓ AwesomeThis app works beautifully with our Trixbox (Asterisk) PBX. And I can answer calls from Push notifications now! Call quality over 3G is excellent. This new version is totally worth picking up..Version: 0
✓ Great app , works wellI love the ease und usability of this app. Supports variety of VoIP providers; just a matter of putting in username and password and it's set up. Works via 3G and also allows multitasking of other apps while running in background..Version: 4.8.9
✓ Works Like A CharmI still need to test my iTouch side with a mic, but otherwise calls are moving in both directions, and I can hear the far side... I can't talk back without a mic. Setup was easy with Broadvoice... Looking forward to updates - keep up the great work!.Version: 0
✓ Tip Top SIP AppI have been struggling with another app that was cheaper but sort of worked; I was tired of restating the app so I looked for a replacement and found the VNET sip phone on iPhone. Worth every penny; I am actually making and receiving calls now! Great app thanks!.Version: 0
✓ Great worked out of the boxGuys, very impressed it just worked - great call quality.Version: 0
✓ NiceGood product ;).Version: 0
✓ Impressive app and Customer ServiceI am using the SipPhone app with VoipStunt. The voice quality is very good in comparison to the Fring Application / with VoipStunt. The interface is straight forward and easy to use. Customer service is as good as it gets; quick responses with quality technical support!.Version: 0
✓ Great sip app.Does what it says it does, better than most dedicated SIP phones. Highly recommended..Version: 0
✓ Easy to set upThis is awesome!.Version: 0
✓ The BESTThis ap is outstanding. With it I can now use my MagicJack service on my iPhone whenever I am connected to Wi-Fi. I'm going to London next week. With this ap I can walk into an Internet cafe or connect my iPhone to the Wi-Fi in my hotel and make unlimited calls to any number in the US and Canada at no cost. Thank you..Version: 0
✓ Best sip app yet!Using it with voip.ms with no issues. Sounds great!.Version: 0
✓ Very satisfiedI've been using SipPhone with Callcentric and it works very well for both inbound and outbound calls. So far this is the best SIP/VoIP application I've seen for the iPhone. If the following could be fixed/added to the app it would be 5 stars: 1. Doesn't show caller id name on inbound calls; even though I see this is being transmitted to the app. 2. It's a little slow to open/load the App; it takes about 10 seconds on my iPhone 3G. Would be great if it opened in just a few seconds. 3. It would be great if it supported the G.729 (lower bandwidth) codec; although I think this might be a licensing issue. 4. Call waiting. Currently you can only receive 1 inbound call at a time. 5. The voicemail waiting indicator (and access to voicemail) could be a little easier to use. 6. The voicemail waiting indicator won't update unless you close and re-open the app; when this does work on other soft/hard phones I've tried. While the above would be nice to get fixed, overall I have no real complaints. Thanks for the great app..Version: 0
✓ For iinet users and any AU VOIP SIP UsersI have bought quite a few apps and this is the LEET of all of them. First I have configured it successfully with iinet using the stun server. The support people are 10/10 wih the outstanding customer service and assistance. Initially it was user configuration but they went to point of understanding my problem and diagnosing in how to fix it. I am not getting latency and distortion compared to my land lines. Hopefully firmware 2.0 will enable apps to run in the background. VNET well done and thanks. Again it's awesome.Version: 0
✓ Great :)Great little app, had it since it's first release and it's been very reliable. Works fine over VPN despite another comment. Would hope for G729 support in a later release..Version: 4.7.1
✓ Tried w/Callcentric and works OKI've tried it with Callcentric a couple of times and seems to be working OK. The connection is immediate. It provides sufficient settings to change + by 011 and avoid the +1 to call US numbers so you can use your phonebook in International notation. I'm satisfied for the time being; I'll keep trying it..Version: 0
✓ Works WellThe new version of this application works exceptionally well with my FreeSWITCH phone stack. I have no complaints regarding the SIP stack, everything works and is compliant. Looking forward to integrated usage of the bluetooth headset! (if this is even possible) Love this application and would recommend the recent version to anyone in need of a SIP phone application..Version: 0
✓ Works with m***** jackGot my sip credentials from my mj and it works beautifully with any wifi connection. The dev team was awesome at answering my technical questions. Btw, this is the 1st app I ever paid for and it was well worth my $$$. I've seen a lot of reviews on various sip phones. Many negative comments are by those unfamiliar that in most cases you will have to hack your credentials out of whatever sip phone service you use. For security reasons most sip providers will not disclose login credentials with their clients. I highly recommend this app. Aside from the asthetics, it performs as advertised and my phone bill has went down substantially. However, before buying, Get your SIP credentials 1st. Try a few google searches for "SIP hack --------service provider name here-----" I did and haven't looked back since. Thanks again to this apps developer. -ray.Version: 0
✓ Good overallI have been using this app since version 1.0 without many problems. The UI could be cleaned up but it worked and continue to works fine on our private VOIP system. It did go very wrong when a cell phone call came in while using the SIP phone app but that could have been expected. I tried Fring but found calls laggy and very poor sound quality, this seems to be the best SIP iPhone app out there right now..Version: 0
✓ Impressed.Wow, I'm impressed someone has finally got a sip client that works with an internal Asterisk Server. I have even used this over a vpn from home to call work exstensions and dial external phone numbers from work's Asterisk server for free. Love the feature to record calls!! Well done developer, keep up the great work!.Version: 0
✓ Brillant softphoneI am using SipPhone with Faktortel and the GSM codec, it works brilantly. Even with relatively high utilisation on my ADSL link both ends experience great call clarity. It is quite possibly the best soft phone I have used to date. The interface is relatively simple at the moment but they got it right where it counts..Version: 0
✓ Works fine with broadvoicePush works reliably, and call connection for pushed incoming calls is the fastest among similar products. Excellent job! Customer support is also very responsive and very knowledgeable. Used my broadvoice account with this app, worked great!.Version: 0
✓ It works!The first app that I know of that allows a direct connection to the SIP server (fring used it's own proxy). My company requires a VPN connection to access our Trixbox/Asterisk server and this app works over the VPN. One negative so far is that some people I have talked to say there is a minor amount of echo audible on their end which didn't happen with my cisco phone or x-lite connected to the same server and calling the same folks. Thanks for the great app, this will definately come in handy when I am low on minutes or international..Version: 0
✓ Works well for meI have had this app for a few months and am very happy with it under 4.1 3G works well Just needs G729 codec.Version: 0
✓ AlmostI have tested this on a Mitel 3300 and 3CX - sooo perfectly simple. Voice quality was ok, but I think that is more down to the iPhone's wifi than the app. This would be the perfect app if it could run as a service. The UI could be a bit more attractive - remember the people who buy this are used to Apple style UIs. Overall, just what I was looking for..Version: 0
✓ Could be a five star.The latency is low as there is no proxy, like fring. My only real complaint is the interface. Ugly..Version: 0
✓ Works wonderfully !I use this app with SipGate and Google Voice and I must say how happy I am ! I have Google Voice set up so that incoming calls are forwarded to my SipGate number. If iSip is closed, I get a push notification which allows me to answer the call. My ONLY complaint with this is that if the caller is not patient, he/she may hang up before iSip loads and answers automatically. The push notification also shows caller ID in the form phonenumber@sipclient. It would be great if it integrated with the contacts, as this integration is limited to using the contacts app to call from within iSip. I have read several reviews and I can tell MOST of the people complaining simply don't know how to configure it. Read the instructions people! iSip does have room for improvement, but as it is right now, it works great for me and I'm really happy to have bought it ! I fully recommend it..Version: 0
✓ Does the jobI've been using version 4.5.1 with vbuzzer without any issues. Now that OS4 is out, the only thing missing is multitasking to be introduced..Version: 0
✓ Finally a real SIP applicationFinaly a real SIP application, supports up to 8 providers, I have it setup with acounts from Pennytel, Exetel, Maxotel and MyNetFone, all working well with great results, direct access to the SIP servers so no routing half way around the world like Fring does, really impressed with the results and I see the development is ongoing as shown on their support forum, excellent app and well worth the asking price.Version: 0
✓ With ios14.2 don’t wokI love this app, but don’t work with iOS 14.2, please do something, please update, is a great app..Version: 5.4
✓ Works with asteriskI don't know why so many are claiming it won't work, I took the risk and was pleasantly surprised to get it working with my asterisk Pbx in about 2 minutes. Seems to work fine so far. I am able to both send and receive calls anywhere there is a wifi connection, even thru NAT. I can be connected to my office pbx as if I was there!.Version: 0
✓ Finally an approved SIP app!Pretty good SIP app. for me so far using the iPhone headset. Echo cancellation could be improved though. Supports sleep mode hence allowing incoming calls..Version: 0
✓ Perfect!Easy to configure, easy to use. Setup is really straight forward. I beleive this is the best as its going to get for an SIP app for the iPhone..Version: 0
✓ Works like a treat !!All staff have at least iPhone 3GS. We use our own Asterisk server & our own Private Notification Server running all on VmWare. We can make calls from any country to each other or back to Office Grandstream Handsets via either 3G or WiFi. And all this for free! It doesn't get much better than that!!.Version: 0
✓ Excellent App!Five Star.Version: 0
😕 ISip -VOIP Sip Phone Negative Reviews
