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Data bearer call answer control, Ringing indications – Nortel Networks CTA 500dm User Manual

Page 51

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AT commands 51

P0873832 Issue 05

CTA 500

dm On Line Guide

Data Bearer Call Answer Control

The Data Bearer Call Answer Control Command

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allows the CTA 500dm to accept or reject incoming calls received
over the data bearer service.

The following table shows the values for data bearer service calls
control.

Result Codes

OK Appears when the selected value is understood.

ERROR Appears when the selected value is not recognized or is not
supported.

Ringing Indications

When the CTA 500dm detects an incoming call that it is allowed to
accept, the RI pin is asserted (see

ÒSerial Interface Control LinesÓ on

page 56

for more information), and a text string is provided to the

serial interface. The text string is repeated every 6 seconds until the
call is answered (manually or automatically), disconnected by the
caller, or if the CTA 500dm is reset (such as assertion of DTR if &D
is 2 or 3).

Result Code

RING Appears when an incoming call is received.

Value

Data Bearer Service Calls

0

rejected (default)

1

accepted