NEC nd-20292 manual Step Second digit dialed, Station

Step 3.	Second digit dialed
A.	Digit	0:	(See OCC	discussion)
B.	Digit	1:	Disconnect	station
C.	Any	digit	2-9:	(next step)

Step 4. Check memory block 3El (area assignment)

A. System not assigned ITC: Disconnect station

B. System assigned ITC: Allow 3rd digit (next step)

Step 5. Third digit dialed

A.Digit 1 or 0: Allow next digit (go to step 7)

B.Any digit 2-9: Allow next digit to be dialed (next step)

Step 6. Check last 3 digits dialed

A.Lowest possible table assigned to station which contains the three digit number as an office code is found.

1.Table is allow: Allow user free dialing

2.Table is deny : Disconnect station

B.No table is found. Check Memory Block 3E-4

1.System allow: Allow user free dialing

2.System deny: Disconnect station

Step 7. Check last 3 digits dialed:

A.Lowest possible table assigned to station which contains the last three digits dialed as an area code item is found

1.Table is allow:

a. Matched item in Table also contains an

office code. (go to step 8)

b. Matched item in table has only area code: Allow user free dialing

2.Table is deny:

a. Matched item in table also contains an

office code. (90 to step 8)

b. Matched item in table has only area code: Disconnect station

B. No table found: Check Memory Block 3E-4

1.System allow: Allow user free dialing

2.System deny : Disconnect station

Step 8. Allow three more digits to be dialed

A.Item in table matches area and office code dialed

1.Table is allow: Allow user free dialing

2.Table is deny : Disconnect station

B.If item in table no longer matches area and office code dialed, locate next lowest table which contains a three digit entry which matches the area code dialed or a six digit

ND-20292

CHAPTER 3

APRIL, 1990

entry which matches the area and office code dialed.

1.New table found

a.Table is allow: Allow user free dialing

b.Table is deny: Disconnect station

2.No table is found. Check Memory Block 3E-4

a.System allow: Free dialing

b.System deny: Disconnect station

360.4OCC (other common carrier access) (refer to Table 360-4)

Step 1. First two digits dialed are 10:

A.If one or more tables assigned have OCC Flag set, then allow 3 more digits to be dialed

(next step’,

B. If no table assigned has OCC Flag set, then disconnect station

Step 2. Check last three digits dialed:

A.All three digits are dialed within ten seconds: Allow next digit to be dialed (next step)

B.All three digits not dialed within 10 seconds: Disconnect station

Step 3. Sixth digit dialed:

A. Digit 0: Disconnect station

B.Digit 1: Allow 3 more digits (90 to step 6) C. Any digit 2-9: Allow one more digit

(next step)

Step 4. Seventh digit dialed:

A.Digit 1 or 0: Allow one more digit (90 to step 6)

B.Any digit 2-9: Allow one more digit (next step)

Step 5. Check last 6 digits dialed:

A. Lowest possible table assigned to the station which contains the third, fourth, and fifth digits as an OCC code and the sixth, seventh, and eighth digits as an office code is found:

1.Table is allow: Allow user free dialing

2.Table is deny : Disconnect station

B. Table is not found. Check Memory Block 3E-4

1.System allow: Allow user free dialing

2.System deny : Disconnect station

Step 6. Check third, fourth, and fifth digits and the last three digits dialed

A. Lowest possible table assigned to station which contains third, fourth, and fifth digit as an OCC code item and the last three digits dialed as an area code entry is found:

300-263