Configure Sip Timer Values - Cisco 8831 Administration Manual

Chapter 3 Configure SIP and NAT
Parameter
SIP TCP Port Max
Caller ID Header
Max INVITE Retry
Attempts
Max NON-INVITE
Retry Attempts

Configure SIP Timer Values

All SIP timer values are in seconds. To configure SIP timer values, navigate to Admin Login >
advanced > Voice > SIP. Under SIP Timer Values (sec), make these changes:
Parameter
SIP T1
SIP T2
INVITE Expires
ReINVITE Expires
Reg Retry Intvl
Reg Retry Long Intvl
Description
Highest TCP port number that can be used for SIP sessions. Defaults to
5080.
Select from where the IP phone gets the caller ID:
PAID-RPID-FROM
PAID-FROM
RPID-PAID-FROM
RPID-FROM
FROM header
Defaults to PAID-RPID-FROM.
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). Ranges from 0 to 64 seconds.
Defaults to 0.5 seconds.
RFC-3261 T2 value, the maximum retransmit interval for non-INVITE
requests and INVITE responses. Ranges from 0 to 64 seconds. Defaults
to 4 seconds.
The length of time the INVITE is valid. If you enter 0, the Expires header
is not included in the request. Ranges from 0 to 2000000. Defaults to 240
seconds.
ReINVITE request Expires header value. If you enter 0, the Expires
header is not included in the request. Ranges from 0 to 2000000. Defaults
to 30
1
Interval to wait before the phone retries registration after failing during
the previous registration. The range is from 1 to 2147483647. Do not enter
0. Defaults to 30 seconds.
When registration fails with a SIP response code that does not match the
Retry Reg response status code (RSC) value (see next table), the phone
waits for this length of time before retrying.
If this interval is 0, the phone stops trying. This value should be much
larger than the Reg Retry Intvl value. The range is from 0 to 2147483647.
Defaults to 1200 seconds.
Cisco Unified IP Conference Phone 8831 for Third-Party Call Control Administration Guide
Configure SIP
3-5