VoIP Phones - 3cx

From AAISP Support Site

3cx.png

3CX is a software phone for Windows, iPhone and Android. See www.3cx.com/voip/softphone

This SIP software on an iPhone just works.

3CX Feature Notes
Tested on FireBrick SIP Server Yes
IPv6 Support Possibly not
Versions Tested iPhone
NAT Tested Yes, Worked on 3G data services

Configuration

Phone-3cx.png
iPhone 3CX Configuration Settings Example
Name: Your name
Display Name: Your name, etc
User: Your phone number
ID: Your phone number
Password: ******
Local PBX: voiceless.aa.net.uk
External PBX IP: voiceless.aa.net.uk
PBX Port: 5060
Stun: Empty
Proxy: Empty
Local SIP Port: 5065
First RTP port: 4000
TCP Transport: Off
NAT HElper Off
Echo CAncellation: On
GSM Off
G.711 (aLaw) On
G.711 (uLaw) Off

Notes

  • Disable STUN by deleting the stun server settings
  • Disable NAT helper
  • Enable/Disable echo cancellation depending on what works best for you
  • Force a-law audio (probably unnecessary).
  • Also works over 3G (dependant on signal!)
  • Also see Blog post