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VP-102 / VP-202 User Manual
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6.
Signaling QoS
– This parameter sets the QoS mode for VoIP Signaling for better response time and more
reliable VoIP Call signaling. Both IP TOS and Diffserv modes are supported. Please check with your
network administrator or ISP for the correct setting.
7.
Signaling Encryption
– Three types of encryption are supported and they can be enabled individually.
These are non-standard encryption for signaling. Please make sure that your SIP Service Provider can
support the encryption(s) enabled.
a)
RC4
– RC4 Encryption Key is required when it is enabled.
b)
Fast
–
c)
VOS
– This encryption is developed by a network equipment vendor in Nanjing, China.
d)
AVS
– This encryption is developed by a network equipment vendor in Shanghai, China.
e)
ET263
– This encryption is supported by major network equipment vendors in China.
8.
Signaling NAT Traversal
– NAT Traversal is an algorithm designed to solve a common problem in
TCP/IP networking in establishing connections between hosts in private TCP/IP networks that use NAT
devices. This parameter only sets the NAT Traversal mode for VoIP signaling. The 2 methods supported
are
STUN(RFC3489)
and
Relay Proxy
. A STUN Server is required for
STUN(RFC3489)
.
Relay Proxy
mode is a proprietary NAT protocol and it requires the use of our Relay Proxy Server. All
VoIP signaling packets are encapsulated (encrypted as well if enabled) and transmitted via another
port/channel. Three relay modes of operation are supported.
