Hardware manual

5901 High Speed Dialup Modem Hardware Manual

October 19, 2007

If +FCLASS=1, 1.0, or 2 is selected, the modem will behave as a facsimile modem and attempt to

connect to a facsimile machine (or modem) by entering the HDLC V.21 channel 2 receive state (as

if +FRH=3 had been issued). This command will be aborted upon receipt of any DTE character if

the modem has not finished dialing. In this case, the modem will go on-hook and return to command

mode after displaying the NO CARRIER message. If the modem has finished dialing, it proceeds as

if the +FRH=3 command has been issued. (Refer to the +FRH command to determine how the

modem behaves following this stage.)

10.2.6 Dial Modifiers

The valid dial string parameters are described below. Punctuation characters may be used for clarity,

with parentheses, hyphen, and spaces being ignored.

0-9 DTMF digits 0 to 9.

* The 'star' digit (tone dialing only).

# The 'gate' digit (tone dialing only).

A-D DTMF digits A, B, C, and D. Some countries may prohibit sending of these digits during

dialing.

L Re-dial last number: the modem will re-dial the last valid telephone number. The L must be

immediately after the D with all the following characters ignored).

P Select pulse dialing: pulse dial the numbers that follow until a "T" is encountered. Affects

current and subsequent dialing. Some countries prevent changing dialing modes after the

first digit is dialed.

T Select tone dialing: tone dial the numbers that follow until a "P" is encountered. Affects

current and subsequent dialing. Some countries prevent changing dialing modes after the

first digit is dialed.

R This command will be accepted, but not acted on.

S=n Dial the number stored in the directory (n = 0 to 3). (See &Z.)

! Flash: the modem will go on-hook for a time defined by the value of S29. Country

requirements may limit the time imposed.

W Wait for dial tone: the modem will wait for dial tone before dialing the digits following

"W". If dial tone is not detected within the time specified by S7 (US) or S6 (W-class), the

modem will abort the rest of the sequence, return on-hook, and generate an error message.

@ Wait for silence: the modem will wait for at least 5 seconds of silence in the call progress

frequency band before continuing with the next dial string parameter. If the modem does not

detect these 5 seconds of silence before the expiration of the call abort timer (S7), the

modem will terminate the call attempt with a NO ANSWER message. If busy detection is

enabled, the modem may terminate the call with the BUSY result code. If answer tone

arrives during execution of this parameter, the modem handshakes.

& Wait for credit card dialing tone before continuing with the dial string. If the tone is not

detected within the time specified by S7 (US models) or S6 (W-class models), the modem

will abort the rest of the sequence, return on-hook, and generate an error message.

, Dial pause: the modem will pause for a time specified by S8 before dialing the digits

following ",".