Sdp; Sip - Polycom CX5500 Administrator's Manual

Polycom CX5500 Unified Conference Station Administrator's Guide
<SDP/>
The configuration parameters in the table
Session Description Protocol (SDP) Parameters
Parameter
voIpProt.SDP.answer.useLocalPreferences
If set to 1, the phones uses its own preference list when deciding which codec to use rather than the preference
list in the offer. If set to 0, it is disabled.
voIpProt.SDP.early.answerOrOffer
If set to 1, an SDP offer or answer is generated in a provisional reliable response and PRACK request and
response. If set to 0, an SDP offer or answer is not generated.
Note: An SDP offer or answer is not generated if reg.x.musicOnHold.uri is set.
voIpProt.SDP.iLBC.13_33kbps.includeMode
If set to 1, the phone should include the mode=30 FMTP parameter in SDP offers:
If voice.codecPref.iLBC.13_33kbps is set and voice.codecPref.iLBC.15_2kbps is Null.
If voice.codecPref.iLBC.13_33kbps and voice.codecPref.iLBC.15_2kbps are both set, the iLBC 13.33 kbps codec
is set to a higher preference.
If set to 0, the phone should not include the mode=30 FTMP parameter in SDP offers even if iLBC 13.33 kbps
codec is being advertised. See <codecPref/>.
voIpProt.SDP.useLegacyPayloadTypeNegotiation
If set to 1, the phone transmits and receives RTP using the payload type identified by the first codec listed in the
SDP of the codec negotiation answer.
If set to 0, RFC 3264 is followed for transmit and receive RTP payload type values.
<SIP/>
The configuration parameters in the table
Session Initiation Protocol (SIP) Parameters
Parameter
voIpProt.SIP.acd.signalingMethod
If set to 0, the 'SIP-B' signaling is supported. (This is the older ACD functionality.)
If set to 1, the feature synchronization signaling is supported. (This is the new ACD functionality.)
Polycom, Inc.
Session Description Protocol Parameters
Permitted Values
0 or 1
0 or 1
0 or 1
0 or 1
Session Initiation Protocol Parameters
1
is defined as follows:
Default
0
0
1
0
is defined as follows.
Permitted Default
Values
0 or 1 0
1.1.0
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