Adc And Nsl; Types Of Calls; Figure 2. Pstn Call - Mircom TX3 Series Configuration Manual

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1.3

ADC and NSL

The TX3 Nano supports 1 ADC or 1 NSL telephone line.

An ADC connection requires a dedicated subscriber telephone line service

connected to an outside telephone line. This connection lets the visitor call the

tenant and access their voice mail.

An NSL connection uses the existing building telephone lines for

communication and does not require a separate telephone line. This system may

consist of one or more TX3 Nanos connected to TX3-NSL-8M NSL Units,

typically located in the electrical/telephone room of a building. The NSL units

intercept all telephone lines into the building's suites and communicate directly

to the resident phone using the TX3 Nano.

Note:

1.4

In all cases, the TX3 Nano can accept DTMF tones, which allow the resident to

open the door for the visitor, or to disconnect the call without opening the door.

1.4.1

PSTN Call

The TX3 Nano makes calls over the PSTN (Public Switched Telephone

Network), as shown in Figure 2.

TX3 Nano Configuration Manual

Non-configurable PBX systems are not supported. For more

information, contact technical support at Mircom.

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