Join softphone - VoIP SIP client app for iPhone and iPad


4.8 ( 4918 ratings )
Social Networking
Developer: VoipSwitch
Free
Current version: 2.4.0, last update: 7 years ago
First release : 12 Nov 2012
App size: 44.47 Mb

Join is a generic SIP Softphone with support for HD voice and video. Inspired by the idea of BYOD (Bring Your Own Device), Join can work with any SIP compliant IP PBX or VoIP provider. In addition Join can be connected to multiple services at the same time.

Join enables VoIP calls over 3G and Wi-FI networks. Wide selection of codecs ensures high quality of both audio and video.
Both signalling and media (audio and video) can be encrypted using advanced security techniques (SRTP and TLS).

Main Features:

-Multiple accounts support with multiple active registrations
-Work in background for TCP, UDP and TLS

-Encryption for SIP and Audio/Video - SRTP and TLS
-Audio codecs including: G.711 (A-Law, u-LAW), G.722 (NB, WB), G.729*, GSM, Silk (NB , MB, HD, UWB), Speex, OPUS
-Video codecs including: H264*, H263+, H263, VP8
-Various video quality settings according to your network conditions: Very High, High, Good, Low, Very Low
-Video Call preview
-Speaker, mute and hold
-Dialing plan support – create your own dial plan rules
-International dialing – automatically add prefixes to dialled numbers

-Instant Messaging (SIP SIMPLE, support for Resource List)
-Contacts list integrated with native address book
-Favorites
-Presence integrated with contacts
-Attachments in IM messages
-Emoticons

-Voicemail indicator (MWI)
-Detailed call history

-Echo Cancellation
-Support for DTMF via SIP INFO and RFC 2833
-DNS SRV
-STUN and ICE
-Rport
- compatible with WebRTC

*Premium codecs can be purchased in add-ons section.

Note:
1. You need to have an account from VoIP provider in order to use this software – Join Softphone is a standalone application and not a VoIP Service.

2. Please, check your cellular operators terms of agreement to make sure they allow sip calls on their network before using Join Softphone.

Pros and cons of Join softphone - VoIP SIP client app for iPhone and iPad

Join softphone - VoIP SIP client app good for

Tried 3 other apps, this one is the only one that worked! Plus the design and the sound quality are great... Using it everyday for work, and have installed it on all the familys iThings!
It simply works and opens also while the app is closed. Its all I need. May be many possible settings I do not really need but an expert is surely very happy about. My full recommendation it is the best of all I tried out.
Support for landscape mode and the possibility to switch off the display while talking would make it a 5 star.
Effective but ugly. Could use more options to define rules for number rewriting.
I use it with Sipgate and a 50 Mbit cable connection. Works very good.
1) never crashes (as opposed to 3cx) 2) always works in background (as opposed to 3cx) if any voip app doesnt have these two properties - it doesnt matter what else they have

Some bad moments

In IOS 9.2 the Application is closed only. With problem in push service. Please upgrade
probably the best looking softphone - but if it does not even open, nobody can see its beauty...
Shows an annoying "rate me" nag screen on every start. I rated now to get rid of it and i rated one star just because of this. Remove the screen or let it occur only once and i promise to rate 5 stars. Dont like to admit this under the circumstances, but the app is actually awesome.
Nice user interface. But highly unreliable. Works somtimes, does not work or crashes in many cases. Certainly needs and deserves some heavy quality assurance work.
This is not useful. Account registration ( with a VoIP.ms account) went well, but no call would connect. It always fails with an error code 408.
Overall good value for money. Areas for improvements: design (fonts - please remove hand written fonts, color schemes, buttons size during call - please increase size), presence function stability, connection stability (need to do app restart to fix 503 error sometimes)