3Com VCX V7122 SIP, User Manual

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3Com VCX V7122/SIP VoIP Gateway User Manual
Table 19
SIP Configuration Parameters
INI File Field Name
GUI Parameter Name
*
Valid Range and Description
SIPDestinationPort
(SIP Destination Port)
SIP UDP destination port for sending SIP messages (default = 5060)
LocalSIPPort Local UDP port used to receive SIP messages (default = 5060)
SecureCallsFromIP
(IP Security)
0 = Accept all SIP Calls (default)
1 = Accept SIP calls only from the IP addresses that 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.
IsUserPhone
(Use user=phone in SIP
URL)
0 = Does not use user=phone string in SIP URL
1 = user=phone string is part of the SIP URL (default)
IsDTMFUsed
(Use INFO for DTMF)
0 = not used
1 = INFO message transfers DTMF digits, implementing IETF draft draft-
choudhuri-sip-info-digit-00
To use out of band DTMF transfer, disable in band DTMF
(DTMFTransportType=0, erase digit and do not relay)
InfoDTMFFormat
(Use Info for DTMF)
1 = Sends DTMF digits according with IETF draft-choudhuri-sip-info-digit-
00
2 = Sends DTMF digits according with Cisco format (default)
Currently the Cisco method of sending DTMF digits in INFO messages is
supported only for incoming Tel
Æ
IP calls.
MaxActiveCalls The parameter limits the number of calls in the Gateway. When number
of concurrent calls reaches MaxActiveCalls, the Gateway rejects calls
from both Tel and IP.
EnableBusyOut
(PSTN Busy Out)
0 = Not used
1 = Enable busy out
If the proxy is not responding or if there is a failure in the LAN network, all
E1/T1 trunks are automatically put out of service by sending a remote
alarm (such as AIS) or service disconnection message for T1 PRI trunks.