Nokia Q & ahttp://www.nokia.com/nokia/0,8764,46750,00.html
Main features of PoC:
Based Half Duplex Voip
2. a Delay of 1 - 2 Seconds Is Employed for Data Buffering In Connection With voice data transfeer.
3.
The main elements of the point point:
POC-enabled Terminal
- Poc Client, User Interface Andintegrated Hands-Free
- SIP and RTP IMPLEMENTATION
Core Network
- POC Application Servers
- Integration To EXISTINGTIONSYSTEMS
Recommended Features for GPRS
- ALWAYS-ON GPRS
- 3GPP R99 Streaming Class QoS-Support
- Degermark IP Header Compression.