Hardware Description and Reference for Avaya ... - Avaya Support

Telephones and speakerphones
Using these protocols, MasterDirectory can:
● Extract data from multiple sources
● Apply filters and business logic to consolidate data
● Populate directory services and databases for use by applications
For example, MasterDirectory can collect information from multiple Avaya media servers,
consolidate the data with human resource databases, and send the processed data to an LDAP
directory service. This directory service provides data for telephone attendant applications,
Internet white pages and yellow pages, and other applications.
Avaya analog telephones
Avaya 2500 and 2554 analog telephones
The Avaya 2500 and the Avaya 2554-series telephones are basically the same, but are
equipped with small different attributes. These telephone models include:
● Desk models:
- 2500 MMGN
- 2500 YMPG
● Wall models:
- 2554 MMGN
- 2554 YMPG
All Avaya 2500 and 2554 telephones are single appearance analog telephones with
conventional touchtone dialing. The 2554 YMGP telephones are equipped with the following
buttons:
● flash button
● message waiting light,
● redial button
● hold button
● mute button.
Features on all four of these telephones are accessed by the star (*) or the pound (#) key and
the appropriate feature access codes.
340 Hardware Description and Reference for Avaya Communication Manager