SIP timers settings

Use this page to set values for the Session Initiation Protocol (SIP) timers that are different from those specified in RFC 3261. SIP timers provide a mechanism for session expiration.The default values are the same as those specified for RFC 3261.

To view this administrative console page, click Servers > Application servers > serverName > SIP container settings > SIP container > SIP stack > SIP timers .

The following SIP timers can be configured from the administrative console.

T1

Specifies the amount of time, in milliseconds, for a network round trip delay for timer T1 for the RFC 3261 specification. The value is used as a base for calculating some timers and is relevant for all types of transactions, such as client, server, invite, and non-invite transactions.

Data type Integer
Default 500
A
Specifies, for UDP only, the amount of time, in milliseconds, before retransmitting invite requests for timer A for the RFC 3261 specification. This setting is relevant for the invite client transaction.
Data type Integer
Default T1
B
Specifies the amount of time, in milliseconds, for the invite client transaction timeout timer (timer B) for the RFC 3261 specification.
Data type Integer
Default T1*64
E
Specifies, for UDP only, the amount of time, in milliseconds, before the retransmission of the initial non-invite request for timer E for the RFC 3261 specification. This setting is relevant for the non-invite client transaction.
Data type Integer
Default 800
F
Specifies the amount of time, in milliseconds, for the non-invite transaction timeout timer (timer F) for the RFC 3261 specification. This setting is relevant for the non-invite client transaction.
Data type Integer
Default 24000
G
Specifies the amount of time, in milliseconds, before retransmission of an initial invite response for timer G for the RFC 3261 specification. This setting is relevant for the invite server transaction.
Data type Integer
Default T1
H
Specifies the amount of time, in milliseconds, to wait for an acknowledgement (ACK) receipt for timer H for the RFC 3261 specification. This setting is relevant for the invite server transaction.
Data type Integer
Default T1*64
J
Specifies the amount of time, in milliseconds, to wait for non-invite request retransmission for timer J for the RFC 3261 specification. This setting is relevant for the non-invite server transaction.
Data type Integer
Default T1*64

T2

Specifies the maximum amount of time, in milliseconds, before retransmitting non-invite requests and invite responses for timer T2 for the RFC 3261 specification.

Data type Integer
Default 4000

T4

Specifies the maximum amount of time, in milliseconds, for a message to remain in the network. This value is used as a base for calculating other timers for timer T4 for the RFC 3261 specification.

Data type Integer
Default 5000
I
Specifies the amount of time, in milliseconds, to wait for an ACK retransmission for timer I for the RFC 3261 specification. This setting is relevant for the invite server transaction.
Data type Integer
Default T4
K
Specifies the amount of time, in milliseconds, to wait for non-INVITE response retransmissions for timer K for the RFC 3261 specification. This setting is relevant for the non-invite client transaction.
Data type Integer
Default T4

D

Specifies the amount of time to wait, in milliseconds, before retransmission of the invite response for timer D for the RFC 3261 specification. This setting is relevant for the invite client transaction.

Data type Integer
Default 32000



Related tasks
Configuring the SIP container
Reference topic    

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Last updated: Oct 21, 2010 5:30:17 AM CDT
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