Description Specifies the interval, in seconds, between transmissions of the Keep
Alive packet to the unit in order to maintain the NAT binding information.
Note
• This setting is available only when "SIP_TRANSPORT_n" is set
to "0" for UDP.
Value Range 0, 10–300 (0: Disable)
Default Value 0
Web User Interface Reference Keep Alive Interval (Page 100)
SIP_ADD_RPORT_n
Parameter Name Example SIP_ADD_RPORT_1, SIP_ADD_RPORT_2, …, SIP_ADD_RPORT_4
Value Format Boolean
Description Selects whether to add the 'rport' parameter to the top Via header field
value of requests generated. For details, refer to RFC 3581.
Value Range
• Y (Add Rport [RFC 3581])
• N (Do not add Rport [RFC 3581])
Default Value
N
Web User Interface Reference Supports Rport (RFC 3581) (Page 101)
SIP_REQURI_PORT_n
Parameter Name Example SIP_REQURI_PORT_1, SIP_REQURI_PORT_2, …,
SIP_REQURI_PORT_4
Value Format Boolean
Description Specifies whether to add the port parameter to the Request-Line in the
initial SIP request.
Value Range
• Y (Add the port parameter)
• N (Do not add the port parameter)
Note
• Request URI in REGISTER example:
– If set to "Y", the port parameter is added to the
Request-Line, as follows:
Request-Line: REGISTER sip:192.168.0.10:5060 SIP/2.0
– If set to "N", the port parameter is not added to
Request-Line, as follows:
Request-Line: REGISTER sip:192.168.0.10 SIP/2.0
Default Value
Y
Document Version 2011-06 Administrator Guide 225
5.7.2 SIP Settings