Sip Timer Values (Sec) - Cisco 8851 Administration Manual

Parameter
Sip Accept Encoding
Disable Local Name To Header
SIP IP Preference
Disable Local Name to Header

SIP Timer Values (sec)

Parameter
SIP T1
SIP T2
SIP T4
SIP Timer B
SIP Timer F
SIP Timer H
SIP Timer D
Description
Supports the content-encoding gzip feature. The options are none and
gzip.
If gzip is selected, the SIP message header contains the string
"Accept-Encoding: gzip", and the phone is able to process the SIP
message body, which is encoded with the gzip format.
The options are No and Yes. If No is selected, no changes are made.
The default value is No.
If Yes is selected, it disables the display name in "Directory", "Call
History", and in the "To" header during an outgoing call.
Sets if the phone uses IPv4 or IPv6.
Default: IPv4.
Select Yes to enable or No to disable.
Default: No
Description
RFC 3261 T1 value (RTT estimate) that can range from 0 to 64 seconds.
Default: 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.
Default: 4 seconds
RFC 3261 T4 value (maximum duration a message remains in the
network), which can range from 0 to 64 seconds.
Default: 5 seconds.
INVITE time-out value, which can range from 0 to 64 seconds.
Default: 16 seconds.
Non-INVITE time-out value, which can range from 0 to 64 seconds.
Default: 16 seconds.
INVITE final response, time-out value, which can from 0 to 64 seconds.
Default: 16 seconds.
ACK hang-around time, which can range from 0 to 64 seconds.
Default: 16 seconds.
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