Case 4: Calls From A Cut-Through Tributary Circuit Switch; Case 5: Calls From A Senderized Tributary Circuit Switch - Avaya Communication Server 1000 Series Reference

Electronic switched network reference-signaling and transmission
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1. The caller goes off-hook, receives a dial tone, dials the ESN access code, receives
2. The senderized main circuit switch does not seize a TIE Trunk to the node after
3. The senderized main circuit switch and the node are mutually arranged to use either
4. When the main circuit switch receives the appropriate start dial signal, it outpulses
The system authorization code is not supported in this case. The following limitations prohibit
the authorization code:
• The senderized main circuit switch cannot provide the authorization code request tone
for authorization code digits.
• The senderized main circuit switch cannot register enough digits for the authorization
code and the called number.
• It is impractical to forward additional digits after the senderized main circuit switch has
outpulsed the called number to the node.

Case 4: Calls From a cut-through tributary circuit switch

This case applies to calls from a cut-through tributary circuit switch to the ESN node by a
senderized main circuit switch. This case is similar to calls from a senderized main circuit
switch. The user at a cut-through tributary circuit switch dials a TIE Trunk access code to reach
the main circuit switch and receives a dial tone from the main circuit switch. From this point
on, the call is handled as though it originated at the senderized main circuit switch.

Case 5: Calls From a senderized tributary circuit switch

This case applies to calls from a senderized tributary circuit switch to the ESN node by a cut-
through main circuit switch. This is not permitted because of signaling compatibility problems.
The tributary cannot provide the proper outpulsing control for routing the call through the main
to the node. In this situation, direct trunks must be provided from the tributary circuit switch to
the node. By definition, the tributary then becomes a main circuit switch.
Electronic Switched Network Reference — Signaling and Transmission
a second dial tone from the main circuit switch, and then dials the desired
number.
receiving the access code. Instead, it collects the digits of the called number and
then seizes a TIE Trunk to the node. The node does not provide a dial tone.
a wink start or delay dial signal as a start dial signal to initiate outpulsing.
the called number to the node and connects the user so that subsequent ringing
signals can be heard.
Calls to the ESN node
August 2011
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