Configuring T1 Cards

Configuring inband robbed-bit signaling

accounting. (On lines configured for PRI signaling, this information is presented as part of the call setup message and does not require special configuration on the TAOS unit.)

To configure the TAOS unit to process the DTMF digits in a call, use the Collect-Incoming-Digits and DSP-DTMF-Input-Sample-Count parameters in a T1 profile.

The Collect-Incoming-Digits parameter enables the TAOS unit to process the DTMF digits in

acall. The DSP-DTMF-Input-Sample-Count parameter specifies the number (one or two) of Goertzel input samples that the TAOS unit computes to decode a DTMF digit. A setting of Two-Samples creates a more accurate result.

To configure a T1 line for inband (robbed-bit) signaling, proceed as in the following example:

1Read in the T1 profile:

admin> read t1 {1 2 1}

T1/{ shelf-1 slot-2 1 } read

2List the Line-Interface subprofile:

admin> list line enabled=no frame-type=d4 encoding=ami clock-source=eligible

clock-priority=middle-priority signaling-mode=inband robbed-bit-mode=wink-start default-call-type = digital collect-incoming-digits = no dsp-dtmf=input-sample-count=one-sample

..

..

3Enable the line:

admin> set enabled = yes

4Specify inband signaling:

admin> set signaling-mode = inband

5Specify the Robbed-Bit-Mode:

admin> set robbed-bit-mode = wink-start

6Specify call type:

admin> set default call type = voice

7If you are using DNIS or CLID authentication, set the TAOS unit to process the DTMF digits and specify the sample size used to decode the digits:

admin> set collect-incoming-digits = yes

admin> set dsp-dtmf-input-sample-count = one-sample

8Write the profile to save the changes:

admin> write

T1/{ shelf-1 slot-2 1 } written

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APX 8000/MAX TNT/DSLTNT Physical Interface Configuration Guide

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Lucent Technologies 7820-0802-003 manual Admin set signaling-mode = inband, Admin set robbed-bit-mode = wink-start