Dialogic 1000Series, User Manual

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68 Dialogic
®
1000 and 2000 Media Gateway Series User’s Guide
Parameter Reference
3.3.5.2 T2 Time
Description: The T2 Time specifies the maximum retransmit time of SIP request messages (except
for INVITE) in milliseconds. The retransmitting of the request and the doubling of the timeout
continues until the timeout reaches T2 Time milliseconds. Once the timeout reaches T2 Time, the
request is retransmitted at T2 Time intervals until a response is received or until the message has
been retransmitted “NumRetriesRequest” times - at which point the request expires.
Allowed Values : 200 - 60000 milliseconds
Default Value = 4000 milliseconds
INI File Parameter Name = sipT2TimeMs
3.3.5.3 T4 Time
Description: The T4 Time specifies the time in milliseconds that the network will take to clear
messages between client and server transactions.
Allowed Values: 1000 - 60000 milliseconds
Default Value = 5000 milliseconds
INI File Parameter Name = sipT4TimeMs
3.3.5.4 T1 Multiplier
Description: Specifies the value to be multiplied by the “T1 Timer” parameter to determine the
timeout for a SIP request. For example, if the T1 Timer is set to 500 milliseconds and the T1
Multiplier is set to 64, then the SIP request will fail in 32 seconds (64 * 0.5 seconds).
Allowed Values: 1 - 255
Default Value = 64
INI File Parameter Name = sipT1Multiplier
Note: Unit requires a restart if this parameter value is changed.