DVG-6008G VoIP Gateway User Manual
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D-Link Corporation
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4.12 System Configuration
4.12.1 Service Parameter
Service Configuration is used for configuring voice calls and some small businesses, such as
Call Progress Tone, codec, silence suppression, * service, the second dial and so on.
To configure voice Processing Parameters
Local Start RTP Port
Means the initial port when RTP voice stream transmit in the IP network, in general, using the
factory default values. When there are severalD-LINKunitsare deployed and they are
in the same network or behind the same NAT, user can try to change it to avoid NAT
traversal issue;
Enable Silence Suppression
Enable the "silence suppression" almost no impact on call quality, and can save about
half of the bandwidth;
Call Progress Tone
Each country has its different call progress tone required standards, such as busy
tone, ring back tones and ring tone standards, users can select the area standard