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SIP Operation Manual
P-Asserted (RFC 3325) Settings
Enable P-Asserted: It is for caller ID protection.
Privacy Type: Privacy type is used to disguise the caller ID when queried via an
ITSP/Third-Party Assertion.
Other Settings
SIP Message Resend Timer Base: This parameter let users define the base of timeout to
fit the real network. SIP packet will resend if response did not arrive in the base time set
in this column. It will send again at "base time" * 2, and send again at "base time" *2 *2.
The maximum resend time is four seconds. Resend will stop and restart when the total
resend time has reached 20 seconds.
Max. Response Time for Invite: If the destination does not reply in the set time, the call is
failed.
Invite URL need ‘user=phone’: There is ‘user=phone’ in invite packet.
Compact Form: It decreases the size of SIP header. Tick the check box to enable this
function.
Reliability of Provisional Responses: Defines a type of SIP responses that provide
information on the progress of request procession. Tick the check box to achieve
reliability for provisional responses.
SIP CallerId Obtaining: Defines from which part of the SIP packet will the gateway obtain
caller ID. There are several places where you can put your caller ID.
Remote-Party-Id Display Name:
It is locate at SIP
→
Remote-Party-ID
→
Before [<sip:]
Remote-Party-Id User Name:
It is locate at SIP
→
Remote-Party-ID
→
After [<sip:],
Before [@]
From-Header Display Name:
The standard way is in SIP
→
Message Header
→
From
→
SIP Display info.
