Nortel Meridian 1 Manual page 85

Simultaneous voice, FAX/modem calls require the Flexible Voice/Data
Terminal Number feature. LD 11 is configured in the system when
implementing the Flexible Voice and Data Feature. See the Software
Input/Output Guide Administration (553-3001-311) for prompt and response
details.
The Analog Terminal Adapter (ATA) is capable of receiving dial pulse or
DTMF address signaling from the analog equipment.
The ATA uses the 2nd channel of the TCM loop to add an analog port to the
digital terminal. It has an RJ11 type jack accessible from the back of the
telset.
The analog interface of the ATA is a 2-wire source, providing A and B leads
(tip and ring) across which analog equipment (modem/fax) is connected. The
loop length will be >100 feet. The analog interface of the ATA is compatible
with the port types listed in Table 18.
Table 18
Port types compatible with ATA
County
United ONS Station Interface
States Class A OPS Station Interface
Canada ONS Station Interface
Class 1300 OPS Station Interface
Refer to Analog Terminal Adapter Installation and Reference Card for
detailed information on this feature.
Follow the steps in Procedure 1 on page 82 to add the Analog Terminal
Adapter (ATA) to the telephone and to connect it to a FAX or modem. The
ATA is supported on Meridian Digital Telephones only.
Add-on modules
Port Type(s)
Telephone and Attendant Console Installation
Page 81 of 144
Defining
Standard(s)
EIA/Tia-464A
FCC Rules Part 68
CAN3-T512.1
CS-03 Part I