3Com V7111 - VCX 4 Channels Analog FXO Media Gateway User Manual page 79

SIP Parameters
Table 19
INI File Field Name
*
GUI Parameter Name
SecureCallsFromIP
(IP Security)
IsUserPhone
(Use user=phone in SIP URL)
IsSpecialDigits
SipT1Rtx
(SIP T1 Retransmission Timer
[ms])
SipT2Rtx
(SIP T2 Retransmission Timer
[ms])
3Com VCX V7111 VoIP SIP Gateways User Manual
Valid Range and Description
0 = Accept all SIP Calls (default)
1 = Accept SIP calls only from the IP addresses which are defined
in the Prefix Routing table. Gateway rejects calls from unknown IP
addresses.
Specifying the IP address of a proxy server in the Prefix Routing
tables enables the Gateway to only accept calls originating in the
Proxy server and rejects all other calls.
0 = Does not use user=phone string in SIP URL
1 = user=phone string is part of the SIP URL (default)
0 = # digit will terminate DTMF dialing (Default)
1 = # digit will not terminate dialing
Timer T1 value for retransmission in ms. SipT1Rtx = 500
Timer T2 value for retransmission in ms. SipT2Rtx = 4000
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