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NeoGate TE100 Administrator Guide

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·Local Network Identification

Used to identify the local network using a network number/subnet mask pair when the

system is behind a NAT or firewall.

Some examples of this are as follows:

'192.168.0.0/255.255.0.0' : All RFC 1918 addresses are local networks;

'10.0.0.0/255.0.0.0' : Also RFC1918;

'172.16.0.0/12':AnotherRFC1918withCIDRnotation;

'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 report 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）Codecs

Figure 6-9

A codec is a compression or decompression algorithm that used in the transmission

of voice packets over a network or the Internet.

u-law: A PSTN standard codec, used in North America, that provides very good

voice quality and consumes 64kbit/s in each direction (receiving and transmitting) of

a VoIP call.

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Yeastar Technology NeoGate Informations techniques Page 32