Unsupported Telephones And Adjuncts; Single-Line Telephones - AT&T MERLIN LEGEND Release 3.1 Installation Manual

Installing Adjuncts
MTR Interface (MTRI)
Off-Premises Extension Unit (OPX)
System 25 Direct Extension Selector (DXS)
See Table 3–1 for additional notes on unsupported telephones and adjuncts.
Table 3–1. Unsupported Telephones and Adjuncts
Model
510D Personal Terminals
DCP telephones
MET telephones
Single-line telephones (with
neon message-waiting lights)
Analog telephone adjuncts

Single-Line Telephones

Releases prior to Release 3.0 system support the single-line telephones listed
in Table 3–2.
3–40
Installing Telephones and Adjuncts
Notes
Digital Communications Protocol (DCP)
7400 telephones and adjuncts (asynchronous data units
and multiple asynchronous data units) that use DCP and
are supported on the MERLIN II Communications System
Multibutton electronic telephones (METs) and adjuncts
used with the Dimension PBX and Horizon systems
Message light does not work
Basic telephone modem interface (BTMI); BTMI-2; off-
premises extension (OPX) unit; System 25 Direct
Extension Selector (DXS); DSS attached to a 34-button
Deluxe membrane