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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.

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.