User manual

TECHNICAL REFERENCE

8-31

S35-S37 Reserved

S38 0 Sets an optional delay, in seconds, before a forced hang-up and clearing of the Transmit

buffer when DTR drops during an ARQ call. This allows time for a remote modem to

acknowledge receipt of all transmitted data before it is disconnected. The modem

immediately hangs up when DTR drops. This option only applies to connections

terminated by dropping DTR. If the modem receives the ATH command, it ignores S38

and immediately hangs up.

S39-S40 Reserved

S41 0 Bit-mapped register setup. To set registers, see instructions for S13.

Bit Value Result

0 1 Distinctive ring enabled.

1 2 Speakerphone connect message override (voice

products only).

2 4 Disable Digital Line Guard (56K internal faxmodems

only).

3 8 Message waiting (voice products only).

4 16 Reserved.

5 32 Reserved.

6 64 Reserved.

7 128 Reserved.