12-01-2008 05:50 AM - edited 07-03-2021 04:50 PM
Dear,
I successfully configured and tested
a HWIC-3G-GSM card on an IOS 1800
router.
Connectivity problems have shown up
now that the router is in the field
(and without out-of-band management connection, unfortunately). To solve
the connectivity problem the only solution was to reload the router
(remind we could not access CLI).
The 3G provider has suggested to
"lock" the 3G card to GPRS mode.
Is this possible? What is meant by
locking is that the 3G card should
never switch to HSDPA when it's available. In fact we have noticed that
transitons GPRS <-> GPRS have occurred
in the past, but I haven't found
any IOS or modem config commands
to "lock" the card to GPRS mode.
Thanks for your advice,
Patrick De Muynck
12-01-2008 06:54 AM
Patrick,
try "cellular 0/0/0 gsm band ?" in enable-mode. I don't know if this is sufficient otherwise take a look at: http://whirlpool.net.au/wiki/?tag=3G_for_Network_Engineers
As you probably know the HWIC-3G-GSM has Sierra Wireless PCB onboard. AT commands for this modem are available at: http://www.sierrawireless.com/resources/documents/support/2130617_Supported_AT_Command_Reference_Rev_2.1.pdf
But beware these are low-level commands, don't blame me for screwing up your modem.
Regards,
Rob den Otter
The Netherlands
12-01-2008 10:48 PM
Thanks Rob, I'll try this and post the
outcome.
Patrick De Muynck - Athens - Greece
12-04-2008 03:34 AM
Hello Patrick,
I've been trying to configure the 3G-GSM card. I'll appreciate if you could let me see your successful configs.
thanks.
Supo
06-12-2009 01:48 PM
Note that this command, cellular x/x/x gsm band, is not a configuration command, so you do not enter it in config mode. It is entered in the privileged exec mode.
The documentation for this command is sparse and does not show the options available for band. I do not have my unit handy to get the options.
Hope this helps someone.
Ron Buchalski
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