Default Value 4
Web User Interface Reference T2 Timer (Page 137)
SIP_TIMER_T4_n
Parameter Name Example SIP_TIMER_T4_1, SIP_TIMER_T4_2, …, SIP_TIMER_T4_8
Value Format INTEGER
Description Specifies the maximum period, in seconds, that a message can remain
on the network.
Value Range
• 0
• 1
• 2
• 3
• 4
• 5
Default Value 5
SIP_TIMER_B_n
Parameter Name Example SIP_TIMER_B_1, SIP_TIMER_B_2, …, SIP_TIMER_B_8
Value Format INTEGER
Description Specifies the value of SIP timer B (INVITE transaction timeout timer),
in milliseconds. For details, refer to RFC 3261.
Value Range 250–64000
Default Value 32000
SIP_TIMER_D_n
Parameter Name Example SIP_TIMER_D_1, SIP_TIMER_D_2, …, SIP_TIMER_D_8
Value Format INTEGER
Description Specifies the value of SIP timer D (wait time for answer resending), in
milliseconds. For details, refer to RFC 3261.
Value Range 0, 250–64000
Default Value 5000
SIP_TIMER_F_n
Parameter Name Example SIP_TIMER_F_1, SIP_TIMER_F_2, …, SIP_TIMER_F_8
Value Format INTEGER
278 Administrator Guide Document Version 2017-07
5.3.22 SIP Settings