Palm Zire 21 - Manual (Page 167)

Network preferences and TCP/IP software
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Adding detailed information to a service template
If you are using one of the predefined service templates, you probably only need
to enter your username and telephone number. If you are creating a new service
template, you may need to provide additional information to your ISP or dial-in
server. You use the Details dialog box to add additional information to a selected
service template.
To select a connection type:
1. Tap the service field.
2. Tap Details.
3. Tap the Connection type pick list and select one of the following connection
types:
NOTE If you are not sure, try PPP; if that doesn’t work, ask your Internet
Service Provider or your System Administrator for the correct connection type.
Idle timeout
The Idle timeout setting defines how long your handheld waits before dropping
the connection with your ISP or dial-in server when you switch out of a TCP/IP
application.
PPP Point-to-Point protocol
SLIP Serial Line Internet Protocol
CSLIP Compressed Serial Line Internet Protocol
Select connection type