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2. Administer a list of audio CODECs, in preference order, that are supported by the G150
Media Gateway. Supported codecs are:
G.711MU (G.711 Mu-law)
G.711A (G.711 A-law)
G.723 (supported, but not recommended)
G.729a (the commonly used codec between G150 Media Gateways)
3. For each codec, complete the following fields:
Silence suppression: Type y (yes) or n (no) to enable or disable RTP-level silence
suppression.
Frames per Pkt: Type a number of 10ms frames, from 2 to 3 (or blank) per packet. The
default for the G.711 codec is two frames. For the G.723 codec, the default is three.
Packet Size is a display-only field.
4. Press ENTER to save the changes.
Administer network regions
Use these procedures to set up network regions, CODEC-sets for a region, QoS values, and
Shuffling.
Multinational locations
If you are deploying G150 Media Gateways in multiple countries, be sure that the media server
and its IP Media Processor(s) or VoIP engine reside in the network region most central and
appropriate for the G150 Media Gateways. Since the country-specific tones assigned to the
VoIP resources are based on where the server's VoIP resource resides and the tones are used
for all G150 traffic, the server's VoIP resource should be located in the country requiring the
most commonly-needed tones.
If different G150 Media Gateways must use different country-specific tone parameters, the
DEFINITY Server CSI/SI or the S8500, S8700, or S8710 media server has the ability to support
each set of tone parameters with a specifically-assigned IP Media Processor board. In this
case, each processor board is assigned to the specific region that its associated G150 Media
Gateway is assigned to. To have multiple IP Media Processors assigned in this way, there must
be a unique carrier (MCC1) or cabinet/gateway for each IP Media Processor.
Note:
An S8300 Media Server cannot support multiple country tone parameters for the
Note:
G150 Media Gateways.
Administer network regions
Issue 1 June 2005
59
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