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Cisco Unified IP Phone Services Application Development Notes
OL-20949-01
Chapter 5 Internal URI Features
Multimedia URIs
Multimedia URIs
These sections describe the multimedia URIs:
RTP Streaming
Play
Vibrat e

RTP Streaming

You can invoke RTP streaming via URIs in services. You can instruct the phone to transmit or receive
an RTP stream with the following specifications:
RTPRx
RTPTx
RTPMRx
RTPMT x
Note For some Cisco Unified IP Phone models, the RTP Streaming URIs have been deprecated by the RTP
Streaming API. See the “RTP Streaming API” section on page 4-1.
The supported format of the RTP stream is as follows:
The codec is G.711 mu-Law.
The packet size is 20 ms.
The following list gives these possible CiscoIPPhoneError codes:
Error 1 = Error parsing CiscoIPPhoneExecute object
Error 2 = Error framing CiscoIPPhoneResponse object
Error 3 = Internal file error
Error 4 = Authentication error
Interaction with Call Streaming
Existing Tx URI streams will be terminated if a new call begins or an existing call is resumed
Tx URI stream requests received when a call is active will be rejected with an errorNo=4
unauthorized. If a call is in a Held state (connected but not actively streaming), the Tx URI reque st
will be accepted, but will be terminated if the call is resumed.
Note Returning errorNo=4 allows the application to distinguish this error from the normal errorNo=1
busy response.
Existing Rx URI streams will be terminated if a new call begins or an existing call is resumed.