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Configuring SIP, SPCP, and NAT
Configuring SIP
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide
132
4
SIP 100REL
Enable
Support of 100REL SIP extension for reliable
transmission of provisional responses (18x) and use of
PRACK requests. Select
yes
to enable. Otherwise, select
no
. Defaults to no.
EXT SIP Port
The external SIP port number substituted for the actual
SIP port in all outgoing SIP messages. If 0 is specified, no
SIP port substitution is performed. Defaults to blank. The
range is from 0 to 65535.
Auth Resync-
Reboot
The Cisco IP phone authenticates the sender when it
receives a NOTIFY message with the following requests:
resync
reboot
report
restart
XML-service
Select
yes
to enable. Otherwise, select
no
. Defaults to
yes.
SIP Proxy-Require
SIP proxy for each extension or behavior when an
extension sees this header from the user agent. If this
field is configured and the proxy does not support it, it
responds with the message, unsupported. Enter the
appropriate header in the field provided. For example,
com.nortel.networks.firewall
.
SIP Remote-Party-
ID
The Remote-Party-ID header to use instead of the From
header. Select
yes
to enable. Otherwise, select
no
.
Defaults to yes.
Referor Bye Delay
Time when the Cisco IP phone sends BYE to terminate
stale call legs upon completion of call transfers. Multiple
delay settings (Referor, Refer Target, Referee, and Refer-
To Target). Enter the appropriate period of time in
seconds. Defaults to 4.
Refer-To Target
Contact
Indicates the refer-to target. Select
yes
to send the
SIP
Refer
to the contact. Otherwise, select
no
. Defaults to no.
Parameter
Description