Ovislink OV804WV User Manual page 200


RFC2833: use RTP packet to encapsulate DTMF events,
as specified in RFC 2833.

Voice Band: DTMF events are mixed with user voice in
RTP packet.
SIP Transport protocol
Select the transport protocol to use for SIP signaling.
Note: SIP proxy and registrar need to support the protocol you
select.
Enable SIP tag matching
Enable the check box to tag in SIP message. Enabling this
feature may impose more strictly checking on SIP messages. If
you place DSL router in a Vonage network, use the Vonage
server. Make sure to uncheck it.
Enable Music Server
When set enabled, the holding party acts like a coordinator,
and triggers the music server to stream music to the hold party.
This is done by sending an INVITE without SDP to music
server and acknowledging server's response with an ACK
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