Configuration Parameters D-6
Appendix D: Using the Configuration File
Edge 5000 Installation / Configuration Guide
VOIP SIP_service_domain Specifies the SIP service domain.
The valid value is an IP address or FQDN.
The default is blank.
preferred_codec Defines the order of priority of codecs for negotiation.
Valid values are g729, g723, g722, pcmu and pcma.
The default order of priority is g729 g723 pcmu pcma g722.
rtp_port Defines the RTP port for media packets.
Valid values are from 16300 to 32700.
The default is 23000.
outbound_proxy_register Enables use of proxy server for SIP requests.
Valid values are enable or disable.
The default is enable.
prack_mode Disables the use of ACK response to provide reliable response
to SIP requests.
Valid values are enable or disable.
Default is disable.
user_param Defines “user=phone” parameter in the To, From, and Contact
headers of REGISTER messages.
Valid values are disable and enable.
Default is disable.
replaces_mode Enables use of the SIP “Replace” header.
Valid values are enable or disable.
Default is enable.
local_udp_port Defines UDP port used for SIP messages.
Valid values are from 1024 to 32000.
Default is 5060.
timer_register_expires Defines time, in seconds, that a registration expires and
re-registration is required. The Expire header in the registration
message includes this value. A value of ‘0’ is a de-registration.
Valid values are 0 to 6400.
Default is 3600.
timer_session Specifies the SIP session timer, in seconds.
Valid values are 0 to 640.
Default is 0.
Section Field Name Description
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