Farallon Communications 612 - Manual (Page 92)

6-8 Netopia ISDN Modem User’s Guide
Placing a Toll Saver call
The Toll Saver feature allows you to place a data call using a voice
channel, thereby saving the extra cost often associated with placing
a data call. By combining the Toll Saver feature with the Netopia
ISDN Modem’s built-in data compression, you can transfer up to
128 Kbps of data for the cost of a single voice call.
Note: To place a Toll Saver call, the device you are dialing into must
be capable of generating the 3.1 kHz tone necessar y for disabling
the echo cancellers on the line. Also, check with your Internet
Ser vice Provider to verify that this feature (also called “56
permissive calls”) is suppor ted.
To manually dial a Toll Saver call, send the following AT command to
the Netopia ISDN Modem:
ATDD <telephone number>
for example: ATDD 14085551234
To configure the ISDN modem to send all outgoing calls as Toll
Saver calls, set S register 61 to 1.
About QuickSelect
The ISDN modem’s QuickSelect feature automatically conver ts
asynchronous Point-to-Point Protocol (PPP) into synchronous
(HDLC-based) PPP. This allows for connections to communication
ser vers and routers that have Basic Rate Inter face (BRI) ISDN,
Primar y Rate Inter face (PRI) ISDN, or T1 access lines.
Using the Netopia ISDN Modem’s QuickSelect feature, you do not
have to manually select the proper protocol for each ISDN call. With
QuickSelect enabled, the ISDN modem automatically detects and
uses the required protocol. QuickSelect is enabled by default.