The originating modem will try to dial the number up to nine times or until a 3-minute time-out is activated. If the dial backup attempt fails, the originating modem will go back to try the leased line connection. If this fails, it will try the dial-up line again.
It will try these two alternatives indefinitely. If the dial backup attempt succeeds, the value of S-register S34 determines the interval of the dial backup connection before going back to check the leased line.
AT-Command | Description |
ATS34=0 | The dial backup line continues to be used |
| indefinitely. |
ATS34=n; | Retries leased line after n minutes. If the leased |
(1≤ n ≤ 255; | line has still not been recovered, the modem will |
default:30) | continue to use the dial backup line. |
Aborting from Leased-Line Operation
If the leased line has not been connected, pressing any key on the RS-1612 LCD control panel will abort the attempt to connect to the leased line. If dial backup is enabled, backup action will be taken. Pressing any key again will abort the backup action and revert to the IDLE SCREEN display.
Terminating a Leased Line Connection
Disconnecting the leased line manually will force your modem to switch to the IDLE SCREEN. Either going on-line manually or, if you have set the leased line as the power-on default, turning the power OFF and ON, will make the modem try the leased line again.
38 Leased Line Operation
