Aastra Telecom REV 06 - Manual (Page 101)

Features in Release 2.2
RN-001029-00, Rev 06, Release 2.2 97
5i Series IP Phone Release Notes
RTP and Multicast RTP via XML
The IP Phones have new XML commands an Administrator can use with the
“AastraIPPhoneExecute” object. These commands allow the phone to send/
recieve an RTP stream to/from given multicast/unicast addresses (without
involving SIP signaling). The new XML commands to use with the
AastraIPPhoneExecute object in an XML application are:
• RTPRx (Receive (Rx) a Unicast RTP stream or stop receiving a Unicast/
Multicast RTP streams)
• RTPTx (Transmit (Tx) a Unicast RTP stream or stop transmitting a Unicast/
Multicast RTP streams)
• RTPMRx (Receive (Rx) a Multicast RTP stream)
• RTPMTx (Transmit (Tx) a Multicast RTP stream)
The phones support the following RTP stream format:
• G.711 mu-law CODEC
• 20 ms packet size
Note: If one of the previous commands is sent to the phone which is
already in a call, the phone places the current call on hold and the RTP
streaming commands are performed using a new audio path.