Farallon Communications 612 User Manual
Page 107
Troubleshooting
7-7
Depending upon the location of the destination you are
dialing, there may be an incompatible local or toll tele-
phone company. Though this is uncommon, if you suspect
a telephone company problem when dialing local or toll
data connections, contact your local telephone company
and have it verify that you can dial a data call to the desti-
nation telephone number.
7.
If you are able to establish a data connection, in which the B-1
or B-2 green LED remains lit and you receive a CONNECT mes-
sage at your application software, but you are unable to send
data, then it is possible that:
■
There is a difference in the local and remote B channel
data rates.
■
There is a mismatch in the data communications protocols
(such as the IP address and configuration).
■
There is an interoperability mismatch between the local
and remote applications.
■
Make sure that the local and remote data applications
have communication capability and are properly configured.
Once you have verified that communication capability
exists, make sure that the B channel call data rate is the
same as the remote destination B channel call data rate.
The default B channel call data rate used by the ISDN
modem is 56
Kbps. Under some circumstances, you may
need to increase the B channel call data rate to 64 Kbps at
both ends of the connection.
8.
Use the diagnostics function available in the Windows and Mac-
intosh versions of the configuration software to test your ISDN
connection. For PCs,
see the “Testing the ISDN switching con-
nection” section on page 4-19.
the “Testing the ISDN switching connection” section on
page 5-14.