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TA1600/2400/3200 User Manual

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―169.254.0.0/255.255.0.0‖: Zero conf local network.

Please refer to RFC1918 for more information.

NAT

Mode

Global NAT configuration for the system; the options for this setting are as

follows:

Yes = Use NAT. Ignore address information in the SIP/SDP headers and

reply to the sender's IP address/port.

No = Use NAT mode only according to RFC3581.

Never = Never attempt NAT mode or RFC3581 support.

Route = Use NAT but do not include rport in headers.

Allow

RTP

Reinvite

By default, the system will route media steams from SIP endpoints

through itself. Enabling this option causes the system to attempt to

negotiate the endpoints to route packets to each other directly, bypassing

the system. It is not always possible for the system to negotiate

endpoint-to-endpoint media routing.

3) Qos

QoS (Quality of Service) is a major issue in VoIP implementations. The issue is how

to guarantee that packet traffic for a voice or other media connection will not be

delayed or dropped due interference from other lower priority traffic. When the

network capacity is insufficient, QoS could provide priority to users by setting the

value.

Figure 5-6 Qos

Note: It’s recommended that you configure the QoS in your router or switch instead of

TA FXS Gateway side.

4) Response Code

You can change the response code on TA FXS Gateway to the one you want before

sending it to the VoIP server. It helps the VoIP server understands better the exact call

status, like busy, no response and others.

Figure 5-7 Response Code