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Linksys SPA9x2 Phone Administration Guide 46
SIP Parameters
Setting SIP Parameters
SIP Parameter Notes
The following table describes all SIP parameters.
Parameter Description
Max Forward SIP Max Forward value, which can range from 1 to 255.
Defaults to 70.
Max Redirection Number of times an invite can be redirected to avoid an infinite loop.
Defaults to 5.
Max Auth Maximum number of times a request can be challenged. Ranges from 0-
255.
Defaults to 2.
SIP User Agent Name Used in outbound REGISTER requests. If empty, the header is not included.
Macro expansion of $A to $D corresponding to GPP_A to GPP_D allowed.
Defaults to $VERSION.
SIP Server Name Server header used in responses to inbound responses.
Defaults to $VERSION.
SIP Reg User Agent
Name
User-Agent name used in a REGISTER request. If not specified, the SIP User
Agent Name is also used for the REGISTER request.
Defaults to blank.
SIP Accept Language Accept-Language header used. If empty, the header is not included.
Defaults to blank.
DTMF Relay MIME
Type
MIME Type used in a SIP INFO message to signal a DTMF event. This
parameter must match that of the service provider.
Defaults to application/dtmf-relay.
Remove Last Reg If set to yes, removes the last registration before re-registering (if the value
is different).
Defaults to no.
Use Compact Header If set to yes, the SPA9x2 uses compact SIP headers in outbound SIP
messages. If inbound SIP requests contain normal (non-compact)
headers, the phone substitutes incoming headers with compact headers.
If set to no, the SPA9x2 uses normal SIP headers. If inbound SIP requests
contain compact headers, the phone reuses the same compact headers
when generating the response, regardless of this setting.
Defaults to no.
Escape Display Name Setting this parameter to yes encloses the configured Display Name string
(see
”Subscriber Information Parameters” section on page 102) in a
pair of double quotes for outbound SIP messages.
Any occurrences of or \ in the string is escaped with \ and \\ inside the pair
of double quotes.
Defaults to yes.