Cisco 8831 Administration Manual page 86

Voice
Parameter
SIP Reg User Agent Name
SIP Accept Language
RFC 2543 Call Hold
SIP TCP Port Min
SIP TCP Port Max
Caller ID Header
Max INVITE Retry Attempts
Max NON-INVITE Retry
Attempts
SIP Timer Values
Parameter
SIP T1
SIP T2
INVITE Expires
Cisco Unified IP Conference Phone 8831 for Third-Party Call Control Administration Guide
A-12
Appendix A Cisco Unified IP Conference Phone 8831 for Third-Party Call Control Field Reference
Description
User-Agent name to be used in a REGISTER request. If this
is not specified, the <SIP User Agent Name> is also used for
the REGISTER request.
Defaults to blank.
Accept-Language header used. To access, click the SIP tab,
and fill in the SIP Accept Language field.
There is no default. If empty, the header is not included.
If set to yes, unit will include c=0.0.0.0 syntax in SDP when
sending a SIP re-INVITE to the peer to hold the call. If set to
no, unit will not include the c=0.0.0.0 syntax in the SDP. The
unit will always include a=sendonly syntax in the SDP in
either case.
Defaults to Yes.
Specifies the lowest TCP port number that can be used for SIP
sessions. Defaults to 5060.
Specifies the highest TCP port number that can be used for
SIP sessions. Defaults to 5080.
Provides the option to take the caller ID from
PAID-RPID-FROM, P-ASSERTEDIDENTITY,
REMOTE-PARTY-ID, or FROM header.
Maximum number of INVITE retry attempts by the phone.
Defaults to 6.
Maximum number of NON-INVITE retry attempts by the
phone.
Defaults to 6.
Description
RFC 3261 T1 value (RTT estimate) that can range from 0 to
64 seconds. Defaults to 0.5 seconds.
RFC 3261 T2 value (maximum retransmit interval for
non-INVITE requests and INVITE responses) that can range
from 0 to 64 seconds.
Defaults to 4 seconds.
INVITE request Expires header value. If you enter 0, the
Expires header is not included in the request. Ranges from 0
to 2000000.
Defaults to 240 seconds.