& hook flash

The & dial modifier issues a hook flash signal — the modem hangs up for a short period. Hook flashes are commonly used with PABXs to transfer calls.

For example:

To dial 0, hook flash and then dial 12345:

• Type: CRN0&12345 <E>

: wait for dial tone

The : modifier causes the modem to wait for a dial tone before dialling. If the modem does not detect a dial tone within 30 seconds, it returns a message of CFI AB, hangs up and returns to local command state.

You can change the dial tone waiting period from the default period of 30 seconds by changing the value in Register 7.

When using the : modifier, the length of time your modem waits for a dial tone is determined by the value contained in S Register 7 (Wait for Carrier) and not the value in S Register 6 (Wait for Dial Tone).

UK Modems. Setting S Register 7 with a value above 58 may invalidate the approval of your modem. S Register 7 must be set to 20 before issuing the : dial modifier.

For example:

To wait for a dial tone and then dial 111-0123:

Type: CRN:1110123 <E>

See Also

CRS command

Dial Stored Number

S Register 6

Wait Time for Dial Tone

S Register 7

Wait Time for Carrier

S Register 8

Length of Dial Pause

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Telenetics 56 manual CRS command Dial Stored Number Register