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Problems Related to External Speakerphones

The following problems may occur with some external speakerphones connected to the 200-type module. These

problems may occur with other equipment as well.

PROBLEM: YOU CANNOT MAKE/ANSWER CALLS AT YOUR 2420 TELEPHONE

The analog equipment attached to your 2420 telephone may be off-hook because it does not detect the

"disconnect" signal sent from the 200-type module. You must manually turn off (that is, place on-hook) your analog

equipment.

PROBLEM: ANALOG EQUIPMENT DOES NOT GO ON-HOOK WHEN YOU LIFT TELEPHONE HANDSET

The analog equipment attached to your 2420 telephone may not go on-hook automatically when you lift the 2420

telephone handset for two reasons. First, make sure that the switch settings on the 200-type module are correct.

Remove power and refer to the 20-Type Stand, 200-Type Module Analog (U.S.) Adjunct Interface, and 201-Type

Module Recorder Interface Installation and Safety Instructions (555-233-132). If the settings are correct, the analog

equipment does not detect the "disconnect" signal sent from the 200-type module. You must manually turn off (that

is, place on-hook) your analog equipment.

PROBLEM: ANALOG EQUIPMENT DOES NOT GO ON-HOOK WHEN THE FAR END DISCONNECTS

The analog equipment attached to your 2420 telephone may not go on-hook automatically when the far end of a

call disconnects because the equipment does not detect the "disconnect" signal sent from the 200-type module.

You must manually turn off (that is, place on-hook) your analog equipment.