NEC NDA-24305 f (t) bit 0-3 bit 4-7 0ms 120ms No detection, SHF detect 1080ms Disconnection

CHAPTER 5 NDA-24305
Page 52
Revision 1.0
CONSULTATION HOLD-ALL CALLS-PRI
C-100 CO NS ULTATION HOLD-ALL CALLS-PRI
1. General Description
This feature permits a station user to hold any incoming or outgoing ISDN network call or any intraoffice call
while originating a call to another station within the system.
2. Operating Procedure
To hold the original call and place the second call:
1. Press the switchhook; receive Special Dial Tone.
2. The original call is held.
3. Dial the second station number; receive Ringback Tone.
4. The second station answers; the consultation hold state has been entered.
To return to the original call:
1. In any of the following cases, the calling station can return to the original call by pressing the switchh ook:
(a) The Second station called for consultation is busy.
(b) The Calling station cannot access to second station due to restriction or any other reason.
(c) Second station does not answer.
2. If the second party hangs up, the calling station will automatically be returned to the original call.
If the originating station flashes the switchhook, THREE-WAY CALLING [T-2] will be initiated.
3. Programming
STEP 1: ASYD - System Data 2, Index 1,bits 0 & 1:CONSULTATION HOLD allowed or denied? 00:
Denied; 01: Originating and Terminating Calls allowed,
Tandem Call Denied; 11: All calls allowed. Normally
assign data “11”.
System Data 3, Index 2,bits 0-3: Switchhook flash starts timer. To calculate this value:
(1-FH) × 120 msec = Timer.
bits 4-7: S witchhook flash ends timer. To calculate this va lue: (1-
FH) × 120 msec = Timer. For both beginning and
ending timers, assign 91H for 120-1080 msec.
f (t) bit 0-3 bit 4-7
0ms 120ms
No detection
SHF detect 1080ms Disconnection