![Proximus forum 523 Mounting And Commissioning Manual Download Page 101](http://html.mh-extra.com/html/proximus/forum-523/forum-523_mounting-and-commissioning-manual_1621341101.webp)
Media Gateway (MGW)
Voice over IP (VoIP)
99
extended codec list in the uppermost fields. Close the list with a fall-back
selection, e.g. with “G.711 A-Law (audio)” and “DTMF (RFC 2833/4733)
(event)”. Use
Apply
to confirm.
Allocate this VoIP profile to the desired SIP terminal or to the desired SIP tie
line. Please note that any codecs not in the VoIP profile are filtered out by the
Forum 523/524 communications system during codec negotiation.
Voice Activity Detection (VAD)
You can change the codec configuration under
Telephony
:
Extended
:
VoIP
profile
. You can also activate the
Voice Activity Detection
option for one or
more codecs in so doing. If this option is active then pauses in the conversation
will be replaced with empty packets. This can be better compressed by
compression-codecs thus reducing the required bandwidth. This option must
be deactivated if you want to assign the profile to a SIP trunk and if you have
set the G.711 codec.
Note:
If you want to allocate the VoIP profile to a Forum IPhone 512 /
Forum IPhone 545 IP system telephone, the
Voice Activity
Detection
option should be deactivated for all codecs.
Media Gateway (MGW)
The Media Gateway transforms VoIP voice data into PCM audio data. This
function converts voice data between VoIP telephones and all other terminal
types. Without the Media Gateway, VoIP telephones can only exchange call
data directly with other VoIP telephones. Media Gateway functionality is also
required for producing dial tones and making external phone calls with a VoIP
telephone.
A Media gateway card makes 8 channels available. One Media gateway
channel should be available for a maximum of 3 VoIP terminals. The Media
Gateway also takes over the routing function for external SIP connections,
making 8 external SIP connections possible.
Summary of Contents for forum 523
Page 1: ...Forum 523 524 Mounting and Commissioning Manual ...
Page 10: ...8 ...