AT&T 555-230-894 manual Tone Detection Parameters

Set Required Country Options

change system-parameters country-options		Page 1 of 21
SYSTEM PARAMETERS COUNTRY-OPTIONS
Companding Mode: A-Law		Base Tone Generator Set: 1
440Hz PBX-dial Tone? n		Secondary-dial Tone? n
Digital Loss Plan: 1
Analog Ringing Cadence: 1	Set Layer 1 timer T1 to 30 seconds? n
Analog Line Transmission: 1

TONE	DETECTION PARAMETERS
Tone	Detection Mode: 5	Dial Tone Validation Timer
(msec):		Interdigit Pause:

3.The default is Mu-Law. If your country uses A-Law companding, type A-Law. If it uses Mu-Law and Mu-Law is displayed, go to Step 4 below.

Companding mode can be A-law or Mu-law. The switch should have been shipped with the correct Tone Detector circuit packs for your country. If you have TN420C you must use A-law. If you have TN748 or TN756 you must use Mu-law. If you have TN2182, then your companding mode is dictated by your local practices. Administering the correct companding mode will turn off any red lights on these circuit packs or on the tone-clock boards (for example TN780).

4.Press ENTER when this information is correct.

Other items eventually need to be entered on this screen, but this is all that must be done to turn the red alarm indication lights off. Refer to Table 7-1for a list of the country codes.

September 1995 Issue 1 7-7