
Http://www.dbltek.com VP-102 / VP-202 User Manual
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Advanced Settings
More settings are available under the
Advanced Settings
tab. Depending on your network requirements, please
consult your network administrator for the correct configuration.
1.
Signaling Port
– This Port is used to convey signaling message with the SIP Proxy. The standard port
number is 5060.
2.
NAT Keep-alive
– When enabled, a dummy packet I sent to the local firewall / router in order to keep the
ports opened for VoIP service.
3.
P2P
– This enables Peer-to-Peer calls.
4.
Virtual Ringback
– This enables a ringback tone to be generated whenever a call is made.
5.
DTMF Signaling
– This parameter sets the method of sending DTMF signals.
Inband
means that the
DTMF signal is sent as an analog signal via the voice channel.
Outband
means that the DTMF signal is
sent as DTMF command via the data channel. Both
RFC2833
and
SIP INFO
methods are supported. For
RFC2833,
a DTMF payload type is required and the default type is set to 101.