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VP-102 / VP-202 User Manual
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Both
NAT Citron
and
Port-forward/DMZ
are well known NAT protocols are are widely used;
however, they require the support of local network.
Relay Proxy mode is a proprietary NAT protocol and it is designed for NAT Traversal with the
capability of avoiding VoIP blockings. All VoIP signaling and/or media packets are encapsulated
(encrypted as well if enabled) and transmitted via another port/channel to our proprietary Relay
Server. Please contact your service provider to determine if this mode is supported.
2.4.3.2 SIP Phone
The
SIP Phone
selection for
Endpoint Type
refers to the protocol used.
Model VP-102 supports only one line registration.
Model VP-202 supports up to two line registrations to the same or different SIP Servers.
The Call Settings pages for both models are shown below. Some of the parameters in VP-202 are
discussed in the Phone Setting Page.
VP-102 VP-202