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Table 74 VoIP > SIP > SIP Account > Add new accoun/Edit (continued)
LABEL
more/less
URL Type
Voice Features
Primary
Compression Type
Secondary
Compression Type
Third
Compression Type
Speaking Volume
Control
Listening Volume
Control
Active G.168
(Echo
Cancellation)
Active VAD (Voice
Active Detector)
Call Features
Send Caller ID
Active Call
Transfer
ActiveCall Waiting
Call Waiting
Reject Timer
Active
Unconditional
Forward
VMG5313-B10A/-B30A Series User's Guide
DESCRIPTION
Click more to display and edit more information for the SIP account. Click less to display
and configure the basic SIP account settings.
Select whether or not to include the SIP service domain name when the VMG sends the
SIP number.
SIP - include the SIP service domain name.
TEL - do not include the SIP service domain name.
Select the type of voice coder/decoder (codec) that you want the VMG to use.
G.711 provides high voice quality but requires more bandwidth (64 kbps). G.711 is the
default codec used by phone companies and digital handsets.
•
G.711a is typically used in Europe.
•
G.711u is typically used in North America and Japan.
G.726-24 operates at 24 kbps.
G.726-32 operates at 32 kbps.
G.722 is a 7 KHz wideband voice codec that operates at 48, 56 and 64 kbps. By using a
sample rate of 16 kHz, G.722 can provide higher fidelity and better audio quality than
narrowband codecs like G.711, in which the voice signal is sampled at 8 KHz.
The VMG must use the same codec as the peer. When two SIP devices start a SIP
session, they must agree on a codec.
Select the VMG's first choice for voice coder/decoder.
Select the VMG's second choice for voice coder/decoder. Select None if you only want the
VMG to accept the first choice.
Select the VMG's third choice for voice coder/decoder. Select None if you only want the
VMG to accept the first or second choice.
Select the loudness that the VMG uses for speech that it sends to the peer device.
-12 is the quietest, and 12 is the loudest.
Select the loudness that the VMG uses for speech that it receives from the peer device.
-12 is the quietest, and 12 is the loudest.
Select this if you want to eliminate the echo caused by the sound of your voice
reverberating in the telephone receiver while you talk.
Select this if the VMG should stop transmitting when you are not speaking. This reduces
the bandwidth the VMG uses.
Select this if you want to send identification when you make VoIP phone calls. Clear this
if you do not want to send identification.
Select this to enable call transfer on the VMG. This allows you to transfer an incoming call
(that you have answered) to another phone.
Select this to enable call waiting on the VMG. This allows you to place a call on hold while
you answer another incoming call on the same telephone number.
Specify a time of seconds that the VMG waits before rejecting the second call if you do
not answer it.
Select this if you want the VMG to forward all incoming calls to the specified phone
number.
Specify the phone number in the To Number field on the right.
Chapter 20 Voice
205
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