AudioCodes MP-124 User Manual page 81

SIP User's Manual
Parameter
Retransmission Parameters
SIP T1 Retransmission
Timer [msec]
[SipT1Rtx]
SIP T2 Retransmission
Timer [msec]
[SipT2Rtx]
SIP Maximum RTX
[SIPMaxRtx]
Version 5.2
http://ArtTel.ru
Table 5-8: General Parameters (Protocol Definition)
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.
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.
Number of UDP transmissions (first transmission plus retransmissions) of
SIP messages.
The range is 1 to 30. The default value is 7.
5. Web-based Management
Description
81 September 2007