VoIP Phones - 3cx
3CX is a software phone for Windows, iPhone and Android. See www.3cx.com/voip/softphone
This SIP software on an iPhone just works.
Feature Notes | |
---|---|
Tested on FireBrick SIP Server | Yes |
IPv6 Support | Possibly not |
Versions Tested | iPhone |
Notes
- Disable STUN by deleting the stun server settings
- Disable NAT helper
- Disable echo cancellation
- Force a-law audio (probably unnecessary).
- Also works over 3G (dependant on signal!)
also see Blog post