
Synway Information Engineering Co., Ltd
SMG-C Series Analog Gateway User Manual (Version 1.7.1)
Page 28
Address
feature is enabled.
STUN Server
Sets whether to enable the STUN server for NAT traversal. By default the STUN
server is disabled.
NAT Type
Detected NAT (Network Address Translation) type. The gateway will return the NAT
type automatically in case
STUN Server
is enabled. It includes 9 types: unknown;
no NAT; ConeNat; RestrictedNat; PortRestrictedNat; Symmetric NAT; Symmetric
NAT with firewall; can’t detect over (fail to send detect message) and fail to detect
(No reply from the stun server).
STUN Server
Address
Address of the server for STUN traversal.
Mapping Contact IP
The IP filled in here will be used in the Contact field of the SIP message.
Mapping SDP IP
The IP filled in here will be used in the SDP field of the SIP message.
Rport
When this feature is enabled, a corresponding Rport field will be added to the Via
message of SIP. The default value is
enabled
.
Auto Detect NAT IP
When this feature is enabled, the gateway will parse the corresponding address and
port in the message returned by Rport so as to use them for the following
communication. By default, this feature is
disabled
.
Note:
This feature gets valid only when Rport is enabled.
RTP Self-adaption
When this feature is enabled, the RTP reception address or port carried by the
signaling message from the remote end, if not consistent with the actual state, will
be updated to the actual RTP reception address or port. By default, this feature is
disabled
.