Need a BlackBerry SIP based VoIP Dialer. Obviously full duplex is a must (which is a known challenge on Blackberry).
Core Features:
- Connection over UDP
- Standard Authentication using MD5 challenge
- Standard Codecs (Speex 8/16/32), ILBC, GSM, PCMU, PCMA
- Echo Cancellation
I'm open to using open source SIP Libraries if needed, but please give me a time/cost estimate using both open source and non open source SIP Libraries.
Thanks