D-Link DVG-G5402SP user manual Advanced

DVG-G5402SP User’s Manual ADVANCED

ADVANCED → VoIP → SIP Advanced

Anonymous Caller ID (CLIR): Check the box to lock the delivery of the Caller ID to the called party.

VoIP Call Out Notification: Check the box to enable the function of playing a tone to notify user that the call is through VoIP.

Enable Built-in Call Hold Music: Check the box to enable the function of playing music when receiving Call Hold request.

Enable Non-SIP Inbox Call: Check the box to make local calls. Local Call here means the call does not go through the Internet and if the dialed number is the extension of other line. You can un-check it to configure as all calls go through the Internet.

Delay PSTN Hangup Detection: Check the box to delay the detection of dully PSTN line on-hook status from PSTN port. You can un-check it to change the sensitivity of detection from PSTN port to detect the PSTN line on-hook status.

Invite URL need ‘user=phone’: Check the box to add ‘user=phone’ as a hint that the part left to the '@' sign is actually a phone number.

Reliability of Provisional Responses: Check the box to send a PRACK request during the progress of the request processing. Reliability of Provisional Responses is to ACK at every SIP packet. With this method, SIP packet will act like TCP, ie. every packet sent will receive an ACK to make sure that packet sent has been received by other peer.

Compact Form: Check the box to represent common header field names in an abbreviated form. This may be useful when SIP message is too large to be carried on and recognized by the user agent.

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