Version 5.2 85 September 2007
SIP User's Manual 5. Web-based Management
Table 5-8: General Parameters (Protocol Definition)
Parameter Description
Retransmission Parameters
SIP T1 Retransmission Timer [msec]
[SipT1Rtx]
The time interval (in msec) between the first transmission of a
SIP message and the first retransmission of the same
message.
The default is 500.
Note: The time interval between subsequent retransmissions
of the same SIP message starts with SipT1Rtx and is
multiplied by two until SipT2Rtx.
For example (assuming that SipT1Rtx = 500 and SipT2Rtx =
4000):
 The first retransmission is sent after 500 msec.
 The second retransmission is sent after 1000 (2*500)
msec.
 The third retransmission is sent after 2000 (2*1000) msec.
 The fourth retransmission and subsequent
retransmissions until SIPMaxRtx are sent after 4000
(2*2000) msec.
SIP T2 Retransmission Timer [msec]
[SipT2Rtx]
The maximum interval (in msec) between retransmissions of
SIP messages.
The default is 4000.
Note: The time interval between subsequent retransmissions
of the same SIP message starts with SipT1Rtx and is
multiplied by two until SipT2Rtx.
SIP Maximum RTX
[SIPMaxRtx]
Number of UDP transmissions (first transmission plus
retransmissions) of SIP messages.
The range is 1 to 30. The default value is 7.
To Next Page
Loading...
Need help?
General