
Notes
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If the end point is a TDM set the call
server messages the Media Gateway to
allocate TDM/IP resource as well as
signalling the traditional set. The Voice
path for the completed call would be via
a Media Card as shown.
IP IP
IP Set to TPS with Dialled no.
TPS passes to Call Server
Call Server looks up Dialled No.
Call Server returns VTN to TPS
TPS signals Destination IP set
Codecs agreed
Zone Bandwidth Allocated
Destination picks up
Voice path established directly IP-IP
IP TDM
IP Set to TPS with Dialled no.
TPS passes to Call Server
Call Server looks up Dialled No.
Call Server contacts Media Gateway
with TN of set
Media Gateway signals destination &
allocates DSP (Media Card) resource
Codecs agreed
Zone Bandwidth Allocated
Destination picks up
Voice path established directly IP-DSP
DSP-TDM resource
11
CS 1000 Rel 7.5 16/04/2013
Copyright Amlex Associates Ltd
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