- Must be compatible with PBXAct and FreePBX.
- Can run in background and stay registered even if multiple programs are open after.
- Be able to Forward a call to an internal extension or to a phone number.
- Be able to do a Conference call.
- Have a Contacts list.
- Compatible with UDP/TCP/TLS for Transmission Protocol
- Can register multiple account at the same time
- Support multi-language (French and English)
- Support RFC2833 as DTMF
- Support PCMU (ulaw) as Voice Codec
- Call History
And a (nice to have) :
- Use a QR code to add an account easily
- Multiple ringtones
- Support QoS
- Import contact list from iPhone, Androïd or Outlook.
- DND option
If you can give me a time frame to build the basic and another time frame for the Extra.