Welltech WellGate M1 - Manual (Page 32)

WellGate M1 Web user guide
Welltech Technology Co., Ltd.
32 / 58 2014/12/1
8.3 Advanced
8.3.1 Function
Provide [SIP Expire Time, SIP/RTP Port, QoS, Register SIP Expire Time, Use DNS SRV,
DTMF, User=Phone, PRACK] Function.
8.3.2 Instruction
(figure1)
Item Description
SIP Expire Time Default is 60; When this function is Set up to 0, the SIP Expire
Time is according to the default value of Server.
This column can only be numbers; maximum length is 5 bytes
with the range of 60~86400 (seconds).
SIP Expire Time
Type Default: General.
Provide options: General, 1/2, 2/3, 3/4, 4/5, 5/6, 6/7, 7/8, 8/9,
9/10.
*This function must be supported by SIP Server or IP-PBX
Server.
The count formula of SIP Expire Time:
General: SIP Expire Time-[(SIP Expire Time/30)*6] as SIP
Expire Time > 60 seconds, if SIP Expire Time < 60 seconds, the
SIP Expire Time subtract 5 seconds uniformly.