Telephones - AT&T MERLIN LEGEND Reference

Equipment and Operation

Telephones

The MERLIN LEGEND BRI system supports the same telephones as a MERLIN
LEGEND Communications System without BRI with the following exceptions:
Analog multiline telephones cannot receive Calling Party Number/Billing
Number information on their displays.
A single-line telephone cannot have a BRI Access button, and therefore,
cannot initiate a CO Transfer of a call.
NOTE:
It is possible to access a BRI line and dial a 5ESS feature code to access
the Local Area Signaling Services (LASS) features. However, the user
should not use a single-line telephone because the correct Directory
Number needed to activate the LASS features cannot be identified.
The Secure Telephone Unit Ill (STU Ill) 1100 and 1150 series telephones
are supported but cannot program a BRI Access button and therefore,
cannot use the CO Transfer feature. The STU Ill 1100M series telephone
are fully supported and can program a BRI Access button.
NOTE:
Tip/ring ports and stations cannot have a BRI Access button, and
therefore, cannot initiate a CO Transfer of a call.
Telephones
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