NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1 Page 137
Uniform Call Distribution (UCD) - PRI U-6
Service Conditions (cont’d)
24. The following connections are supported by this service.
25. When a call is transferred to the UCD group and encounters all stations busy, the call is not placed in a
queue and the caller receives busy tone.
26. UCD is available for the following incoming calls:
CALLING PARTY RECOGNITION SERVICE
(DIRECT-IN TERMINATION (DIT)) [C-104]
Call termination by sub-address
CALL TRANSFER - ALL CALLS [C-11]
Call transferred by Attendant
DIRECT-IN TERMINATION (DIT) [D-7]
DIRECT INWARD DIALING (DID) [D-8] from ISDN trunk
27. DATA QUEUING [D-126] is not available for incoming ISDN calls.
28. When an incoming call remains in a queue for 90 seconds, the call is automatically released.
29. When Delay Announcement is provided, billing starts from the beginning of the announcement.
30. When an incoming call from an ISDN trunk terminates to a busy UCD group, CALL WAITING -
ORIGINATING [C-31] and STEP CALL [S-13] cannot be activated.
31. When an incoming call from an ISDN trunk terminates to the Attendant and is transferred to a busy UCD
group, the following services can be activated.
CALL FORWARDING - INTERCEPT/ANNOUNCEMENT - ATTENDANT [A-1]
CALL BACK [C-1]
EXECUTIVE RIGHT-OF-WAY [E-1]
32. When an incoming call from an ISDN trunk terminates to a station and is transferred to a busy UCD group,
STEP CALL [S-13] service is available, but CALL WAITING - ORIGINATING [C-31] service cannot
be activated.
Called Party
Calling Party
UCD
UCD Delay
Announcement
Station DA
ISDN trunk Available Not Available Available
Call Transfer
(holding ISDN trunk) Available Not Availabl e Not Available
Attendant connecting an incoming
call from ISDN trunk to station Available Not Available Available