Cisco Cisco 4G LTE Enhanced High-Speed WAN Interface Cards for LATAM Information Guide
Q&A
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cellular <unit> gsm sim <lock | unlock> <pin>
Network and Associated Services
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For the 3G Wireless HWIC (HWIC-3G-CDMA), will Rev A be enabled on my modem if I
upgrade the Cisco IOS Software image to Release 12.4(15)T?
No. If the modem is not enabled for Rev A, upgrading the Cisco IOS Software image will not
enable Rev A. You can enable Rev A by using the following command on the CLI: test cellular
x/x/x cdma rev-a enable.
No. If the modem is not enabled for Rev A, upgrading the Cisco IOS Software image will not
enable Rev A. You can enable Rev A by using the following command on the CLI: test cellular
x/x/x cdma rev-a enable.
How do I enable Rev A on my modem?
Rev A should be enabled by default, but if it is not, you can enable it with the following
commands:
Rev A should be enabled by default, but if it is not, you can enable it with the following
commands:
service internal
test cellular x/x/x cdma rev-a enable
How do I verify if Rev A is enabled after I issue the test command?
Check the output of the show cellular x/x/x network command.
Check the output of the show cellular x/x/x network command.
Network Information
===================
Current Service = 1xEVDO (Rev A) and 1xRTT
Current Roaming Status(1xRTT) = HOME, (HDR) = HOME
Will the 3G wireless HWIC (HWIC-3G-CDMA) cycle between EVDO and 1XRTT? For
example, if the card is in 1XRTT mode and is moved to a location with an EVDO carrier
that offers a better RF signal level, will the card switch to EVDO or do I need to switch it
manually?
The modem looks for EVDO as a first choice. If EVDO Rev A is not available, the 3G HWIC
downshifts to the best radio network available. In other words, it attempts to connect to the
best service available on the operator's network. If EVDO Rev A is not available, the 3G HWIC
negotiates for EVDO Rev 0, and if that is not available, 1xRTT.
The modem looks for EVDO as a first choice. If EVDO Rev A is not available, the 3G HWIC
downshifts to the best radio network available. In other words, it attempts to connect to the
best service available on the operator's network. If EVDO Rev A is not available, the 3G HWIC
negotiates for EVDO Rev 0, and if that is not available, 1xRTT.
For the 3G Wireless HWIC (HWIC-3G-GSM), will the modem cycle between high-speed
downlink packet access (HSDPA) and Universal Mobile Telecommunications Service
(UMTS)?
Yes. The modem always looks for HSDPA as the first choice. If HSDPA is not available, the
modem downshifts to the next best available radio network; that is, UMTS to Enhanced Data
Rates for GSM Evolution (EDGE) and finally to General Packet Radio Service (GPRS).
Yes. The modem always looks for HSDPA as the first choice. If HSDPA is not available, the
modem downshifts to the next best available radio network; that is, UMTS to Enhanced Data
Rates for GSM Evolution (EDGE) and finally to General Packet Radio Service (GPRS).
I have a 3G wireless HWIC modem connected over the Verizon network (HWIC-3G-
CDMA-V). The first connection is fine, but the subsequent attempts fail. Something in
the network is stopping authentication immediately following a disconnect. I see both
the EVDO and the 1xRTT signals, and the received signal strength indication (RSSI)
indicates high values for both.
Using debugs, verify if there are any PPP authentication failures and a Mobile IP (MIP)-to-
Simple IP (SIP) failover. Cisco recommends a Dynamic Mobile IP Key Update (DMU) key reset
Using debugs, verify if there are any PPP authentication failures and a Mobile IP (MIP)-to-
Simple IP (SIP) failover. Cisco recommends a Dynamic Mobile IP Key Update (DMU) key reset