AudioCodes Mediapack mp-11x, Руководство пользователя

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Version 5.2 81 August 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):
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The first retransmission is sent after 500 msec.
ƒ
The second retransmission is sent after 1000 (2*500) msec.
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The third retransmission is sent after 2000 (2*1000) msec.
ƒ
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.