VARO - TL51

VARO = D1D2D3D4D5D6D7D8

D1D2D3D4 =

0000

Reserved.

D5 =

0 - F

See Table Table 1.

D6 =

0 - F

See Table Table 2

D7 =

0 - F

See Table Table 3.

D8 =

0 - F

See Table Table 4.

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

Receive EOS

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

No

X

X

X

X

X

X

X

X

.

.

.

.

.

.

.

.

Yes

.

.

.

.

.

.

.

.

X

X

X

X

X

X

X

X

Presending pause time when using decadic impulsing

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

0 sec

X

.

.

.

.

.

.

.

X

.

.

.

.

.

.

.

0.2 sec

.

X

.

.

.

.

.

.

.

X

.

.

.

.

.

.

0.4 sec

.

.

X

.

.

.

.

.

.

.

X

.

.

.

.

.

0.6 sec

.

.

.

X

.

.

.

.

.

.

.

X

.

.

.

.

0.8 sec

.

.

.

.

X

.

.

.

.

.

.

.

X

.

.

.

1.0 sec

.

.

.

.

.

X

.

.

.

.

.

.

.

X

.

.

1.2 sec

.

.

.

.

.

.

X

.

.

.

.

.

.

.

X

.

1.4 sec

.

.

.

.

.

.

.

X

.

.

.

.

.

.

.

X

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

Interdigit pause time when using decadic impulsing

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

300 ms

X

X

X

X

.

.

.

.

.

.

.

.

.

.

.

.

400 ms

.

.

.

.

X

X

X

X

.

.

.

.

.

.

.

.

500 ms

.

.

.

.

.

.

.

.

X

X

X

X

.

.

.

.

600 ms

.

.

.

.

.

.

.

.

.

.

.

.

X

X

X

X

Alternative routing permitted

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

No

X

X

.

.

X

X

.

.

X

X

.

.

X

X

.

.

Yes

.

.

X

X

.

.

X

X

.

.

X

X

.

.

X

X

Wait with call to interworking exchange until minimum number length has been received (only at MFC outgoing traffic)

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

No

X

.

X

.

X

.

X

.

X

.

X

.

X

.

X

.

Yes

.

X

.

X

.

X

.

X

.

X

.

X

.

X

.

X

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

Double seizure check at bothway traffic

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

No

X

X

X

X

X

X

X

X

.

.

.

.

.

.

.

.

Yes

.

.

.

.

.

.

.

X

X

X

X

X

X

X

X

Delay transmission of first digit after dial tone or seizure acknowledgement

No

X

X

X

X

.

.

.

.

X

X

X

X

.

.

.

.

Yes

.

.

.

.

X

X

X

X

.

.

.

.

X

X

X

X

Interworking exchange sends clearing signal

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

No

X

X

.

.

X

X

.

.

X

X

.

.

X

X

.

.

Yes

.

.

X

X

.

.

X

X

.

.

X

X

.

.

X

X

Interworking exchange sends B-answer

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

No

X

.

X

.

X

.

X

.

X

.

X

.

X

.

X

.

Yes

.

X

.

X

.

X

.

X

.

X

.

X

.

X

.

X

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

Receive dial tone from interworking exchange

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

No

X

X

X

X

X

X

X

X

.

.

.

.

.

.

.

.

Yes

.

.

.

.

.

.

.

.

X

X

X

X

X

X

X

X

Receive seizure acknowledgement from interworking exchange

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

No

X

X

X

X

.

.

.

.

X

X

X

X

.

.

.

.

Yes

.

.

.

.

X

X

X

X

.

.

.

.

X

X

X

X

Type of digit sending to interworking exchange

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

None (manual line)

X

.

.

.

X

.

.

.

X

.

.

.

X

.

.

.

Decadic pulsing

.

X

.

.

.

X

.

.

.

X

.

.

.

X

.

.

Tone code

.

.

X

.

.

.

X

.

.

.

X

.

.

.

X

.

MFC-code

.

.

.

X

.

.

.

X

.

.

.

X

.

.

.

X

Receive EOS

Yes

Presending pause time when using decadic ...

0

Interdigit pause time when using decadic ...

300 ms

Alternative routing permitted

No

Wait with call to interworking exchange until ...

No

Double seizure check at bothway traffic

Yes

Delay transmission of first digit after dial tone ...

No

Interworking exchange sends clearing signal

Yes

Interworking exchange sends B-answer

Yes

Receive dial tone from interworking exchange

No

Receive seizure acknowledgement from ...

Yes

Type of digit sending to interworking exchange

MFC code