Chapter 3 - Configuration

3.3.3 NAT traversal setting

Select the NATtraversal type.You may check the uPnPbutton if your NAT/Firewall supports uPnP SIP ALG, or assign the STUN server IP if you are using STUN service. You may also assign the RTP port if there is port enabling on your router settings.

3.3.4 ToS/DiffServ settings

This sub-page is used to configure theType-of-Service/Diffserv byte values.These values are to be used in the IP header of all transmitted SIP signaling packets and RTPpackets.TheToS/DiffServ byte values are entered as a two-digit hexadecimal value. If no special ToS/DiffServ value is to be used for a particular traffic type, enter “00” or leave the setting empty.

3. 4 Advanced setting

There are five sub-pages in the advanced settings page. Basically, this page is for the advanced users. Most of the time, the default settings should work for normal application unless your service provider needs special configuration.

3.4.1 CODEC & Packet

CODEC configuration

Choose which codecs are to be supported. For SIP protocol, the G711U and G711Aprotocols are always supported by default. You can select which complex codec is to be supported inAX-112. But due to memory limitations, it is not possible to select more than one complex codec at the same time.

You can also select to enable or disable the silent suppression function for each codec type. To do this, just click on the checkbox beside a codec type.

English

AX-112 Analog Telephone Adapter

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