NEC NEAX2400 ICS, Руководство по программированию

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NEAX2400 IPX Feature Programming Manual
Page 1010
NDA-24297, Issue 1
S-52 Serial Call - CCIS
Operating Procedure (cont’d)
5. Station (b1) answers and is connected with Station (c). The HOLD status remains on the Attendant
Console.
6. Station (b1) hangs up. On the Attendant Console, the lamps in the loop key section corresponding to the
incoming call keep flashing at 60 ipm, and the bell rings. Station (c) receives ringback tone.
7. The Attendant presses the loop key corresponding to the flashing lamps. Station (c) and the Attendant are
connected again. The Attendant assists the connection to the next station.
Service Conditions
1. If the attendant enters a loop that is already set up for a SERIAL CALL, the service is automatically
cancelled.
2. SERIAL CALL is not provided for Station-to-Station calling.
3. SERIAL CALL can be provided on a TENANT [T-12] basis.
STN (c)
STN (a)
ATT
[Node A]
CCIS
[Node B]
STN (b1)
STN (b2)
PUBLIC
SWITCHED
TELEPHONE
NETWORK
STN (c)
A
ATT
[Node A]
CCIS
[Node B]
STN (b1)
STN (b2)
RG
RBT
RBT
PUBLIC
SWITCHED
TELEPHONE
NETWORK