Non-Menu (Hidden) Parameters; T1 Time; T2 Time - Dialogic DMG1000 User Manual

Parameter Reference
3.9.6.1

T1 Time

Description: The T1 Time specifies the SIP request retransmit timeout in milliseconds. This timer
is started when a SIP request is generated. If no response to the request is received in T1 Time
milliseconds, the request is retransmitted and the timeout is doubled to 2*T1 Time milliseconds. If
again no response is received before the new timeout, the message is again retransmitted and the
timeout is again doubled - this time to 4*T1 Time milliseconds.
Allowed Values: 200 - 60000 milliseconds
Default Value = 500 milliseconds
INI File Parameter Name = sipT1TimeMs
3.9.6.2

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
3.9.6.3 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
3.10

Non-Menu (Hidden) Parameters

The following parameters are not included in the Configure Web pages and cannot be accessed
from the Configuration menu selections. Modifying any of these parameters significantly changes
the operation of the Media Gateway. The non-menu configuration parameters include the following
groups:
DSP Advanced Group
•
• CPID Parsing Configuration
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Dialogic 1000 and 2000 Media Gateway Series User's Guide — September 2007
Dialogic Corporation