NEC NEAX 2400 IPX, Programming Manual

Page: 75 / 316

NDA-24305 CHAPTER 5
Page 57
Revision 1.0
CALL WAITING-TERMINATING-PRI
C-114 CALL WAITING-TERMINATING-PRI
1. General Description
This feature enables a busy station to receive a second incoming call from DID trunk of ISDN network. A Call
Waiting Tone is sent to the busy station, the user can use CALL HOLD [C-3] to answer the second call. CALL
HOLD [C-3] may be used to alternate between the two calls.
2. Operating Procedure
To activate CALL WAITING-TERMINATING on an incoming ISDN trunk call:
1. The system receives the called station number.
2. If the called station is busy, CALL WAITING-TERMINATING is automatically set;
calling station receives Call Waiting Ringback Tone.
Call Waiting Tone (2 beeps) is sent to the busy station. If the called station is a D
term
LED of “ANSWER”
key flashes.
To answer a CALL WAITING-TERMINATING call:
1. Call Waiting Tone is heard during the call in progress.
2. Flashing the switchhook or pressing the “ANSWER” key on the D
term
will hold the existing call.
3. CALL WAITING-TERMINATING is automatically connected.
4. Another switchhook flash or pressing the “ANSWER” key on the D
term
will return to the original call and
hold the second call.
OR
1. Call Waiting Tone is heard during call in progress.
2. The called station hangs up; priority ringing is sent.
3. Lift the handset to answer.
3. Programming
STEP 1: Assign the Basic Data for ISDN. (Refer to Chapter 3, “Basic Data Assignment for ISDN” .)
STEP 2: ASYD - System Data 2 Index 10, bit 6: Call Waiting-Terminating Service 0/1=Out/In Service.
STEP 3: ASFC - Assign SFI6=1 (Call Waiting-Terminating Service is allowed.). Also SFI11=1 (Data Line
Security is OFF.).
STEP 4: ARTD - For DID Trunk (Bch) of ISDN, assign CDN46 (CW)=1.
Priority ringing = 0.4 sec. ON 0.2 sec. OFF 0.8 sec. ON
0.2 sec. OFF 0.4 sec. ON 0.4 sec. OFF