iSip -VOIP Sip Phone

iSip -VOIP Sip Phone

By Langtian Du

  • Category: Social Networking
  • Release Date: 2009-02-03
  • Current Version: 5.4
  • Adult Rating: 4+
  • File Size: 11.24 MB
  • Developer: Langtian Du
  • Compatibility: Requires iOS 9.0 or later.
Score: 3
From 710 Ratings


iSip, formerly sipphone. This is the first general sip client for iPhone. This is also the first app on iPhone to record phone conference. Just use any voip provider, you can make sip call with this application. You can also setup the SIP server in your own organization, with this application, your iPhone is your extension. By the way you can record your conference with one tap a way. The iSip application works on iphone, IPod Touch and iPad. With this application, user can make cheap VOIP calls when his/her IPhone or IPod Touch is connected to the internet via WIFI. Feature Lists: (1) support SIP calls (2) support speaker phone (3) support show voice mail (4) support multiple ringtone (5) support DTMF during the call (6) support G711 and GSM codec, iLibc and G722 codec for iPhone 3GS (7) support to use alternative RTP port (8) support stun server (9) support global outbound proxy (10) support proxy server for individual account (11) support mute/hold call (12) support multiple SIP accounts (able to set one default account for dial out) (13) support dial from iPhone's address book (14) support prefix for dialing from iPhone's address book (15) support dial from recent calls (16) shortcut to regular cellular network (17) full VPN support for enterprise customers (18) support call transfer (19) sip account setup wizard for more than 60 sip providers (20) Record call conference (21) Now support calls over 3G network (22) Support private APNS server Note: (1) This is SIP client software on iPhone, you need to have SIP account from SIP provider in order to use this software. (2) For iPod touch 1st generation users, you need upgrade your iPod to iPhone/iPod OS 2.2 or above and you also need external MIC. We have tested this app with Macally iVoiceIII external MIC. (3) SKYPE is not sip protocol, so this app does not support SKYPE account. (4) Some mobile network operators may prohibit or restrict the use of Voice over Internet Protocol (VoIP) functionality over their network, such as the use of VoIP telephony over a cellular network, and may also impose additional fees, or other charges in connection with VoIP. Please check with your service provider before you use SIP call over 3G or Edge network. (5)Changes in prefix settings: Now we have prefix for each account, the prefix for each account only works for calls made from address book. When the per-account prefix is not set, the prefix in setting will be used, it works for all calls Don't hesitate to contact our support if you have any questions about this app.



  • App keeps in crashing

    By Helifly
    I used to use this app daily. However the new version keeps on crashing every single time. Please fix soon thank you
  • Moneywaster

    By Widmfmidkfn
    Don't waste yer money when I click call it does nothing
  • Used to work ... But not now...

    By kvesterling
    Upgraded app. Lost all custom accounts... Now it won't let me click Next to set up a custom account. No joy... Will only recommend to people I dislike. Media5 phone app however just works...
  • Won't keep account active

    By Timiller1826
    It worked great for many years. Now, I must reenter my account information each time I want to use it. This may be a result of developer not keeping up with updates.
  • Silo Commander

    By Silo Commander
    New version 4.9 wouldn't save SIP settings. Rebooting seemed to have fixed it! Kudos to tech support for emailing me back!

    By David in Africa
    This used to be a great app. The latest version has a clock problem, Either easy night it will delete all your data at 24:00 or any time it crashes, which is fairly frequent. Emails to tech support always go unanswered. Now after 3 weeks, I consider this a fraud! BEWARE!
  • New version keep deleting my account

    By JosTanSing
    Hi 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
  • Updating clears accounts

    By cheez puffs
    I had sip working fine, updated the app via App Store, all account settings are gone, I have to readd them. Time consuming, not worth the effort.
  • Used to work!

    By OCAudioman
    Used to work on iPhone 3GS, now crashed constantly. Please fix, Don't want to spend money on another app!
  • Crashes on iPhone

    By Sparks2633
    I used this app for a few years. With the current version, it crashes when a call is made or received.