Draytek VIGOR2925 SERIES User Manual page 472

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Ring Pattern

Prefer Codec

Vigor2925 Series User's Guide

call forwarding function. Always means all the incoming

calls will be forwarded into SIP URL without any reason.

Busy means the incoming calls will be forwarded into SIP

URL only when the local system is busy. No Answer means

if the incoming calls do not receive any response, they will be

forwarded to the SIP URL by the time out.

SIP URL – Type in the SIP URL (e.g., aaa@draytel.org or

abc@iptel.org) as the site for call forwarded.

Time Out – Set the time out for the call forwarding. The

default setting is 30 sec.

Set Phone 1 and/or Phone 2 as the default ring port(s) for this

SIP account.

Choose a ring tone type for the VoIP phone call.

Select one of five codecs as the default for your VoIP calls.

The codec used for each call will be negotiated with the peer

party before each session, and so may not be your default

choice. The default codec is G.729A/B; it occupies little

bandwidth while maintaining good voice quality.

If your upstream speed is only 64Kbps, do not use G.711

codec. It is better for you to have at least 256Kbps upstream

if you would like to use G.711.

Single Codec – If the box is checked, only the selected

Codec will be applied.

The amount of data contained in a single packet. The default

value is 20 ms, which means the data packet will contain 20

ms voice information.