Instruction manual

CLASS: Calling Number and Name Delivery Page 1121 of 3156
Features and Services
Operating parameters
Dialed Number Identification System (DNIS) is not supported by the CLASS
feature.
This feature has been developed for the North American residential market,
as well as for the small business, hospitality, schools and universities, nursing
homes and hospitals, and mobile home markets.
This feature applies to a standalone environment, and to an ISDN networking
environment supporting CLID and a non-ISDN networking environment with
or without In-Band Automatic Number Identification (ANI).
If the CLASS Calling Number Delivery and CLASS Calling Name Delivery
data to a CLASS set is lost, there is no indication, such as an error message,
provided. The call is presented in the normal manner, as if the CLASS CND
function has not been activated.
A maximum of 10 digits can be delivered as the calling number, and a
maximum of 15 characters can be delivered as the calling name. These are
Bellcore limitations.
The 16 port Analog Message Waiting line card (QPC789A) is not supported
for CLASS: Calling Number and Name Delivery.
Up to 255 CLASS modems can be configured on a Meridian 1 system, and
up to 32 CLASS modem units can be configured on any Extended CLASS
Modem card.
No CLASS CND traffic measurement is supported.
The CND delivery interval is the first silent interval, after ringing has been
applied for a new call, that is greater than two seconds. If the ringing applied
to the CLASS set uses a cadence with a ring-off cycle that is more than four
seconds in duration, then the CLASS set might view the call as having been
disconnected and might clear the CND display as a result. This is a CLASS
set firmware limitation.