PROBLEM
RESOLUTION
I have a USB DSL
DSL modems with only a USB interface are not supported.
modem.
I have a satellite
Satellite broadband connections are not supported.
broadband Internet
connection.
I can't get this to
AT&T CallVantage
work with my
Check the settings on your VPN Client to verify that "keepalive"
company's Virtual
messages are disabled. Also, select "allow VPN to pass through
Private Network
NAT", if this option is available. You may have to disable (un-
(VPN).
check) "negotiate UDP encapsulation with VPN tunnel server",
if this option is available. You should also contact your
network administrator to understand what other settings may
need to be modifi ed for your setup.
I cannot get AT&T
For best results, download and run the AT&T CallVantage
CallVantage
Assistant. This is a downloadable self-extracting fi le that checks
Service to work. I
your system confi guration, provides system information, walks
need assistance.
you through the TA installation, and performs basic diagnostics
and troubleshooting. If you are a new customer and this is the
fi rst time you are installing your TA, it will automatically walk you
through the TA activation process.
®
Service supports most VPN clients.
PROBLEM
RESOLUTION
My data service is
If you are using a home router, make sure your device has the
lost every once in a
most up-to-date software available from the manufacturer.
while, but I still have
Software updates are readily available from the manufacturer's
a dial tone.
Web site. Check their site for your model, and compare the
most recent version they are offering against the version your
I am using a home
device is running. If they are not the same, follow the upgrade
router and have to
instructions on the Web site or in your router's manual.
reboot everything to
get the data to work
again.
I am having voice
1. If you set up your TA behind your router (i.e. you followed
quality problems
the installation steps in Appendix A), your data connection
with my phone.
may be interfering with your voice connection and reducing the
quality of your calls. To ensure the highest call quality
AT&T recommends that you follow the standard setup with the
TA in front of the router, as described in Steps 1-6 of this guide.
2. If your TA is in front of your router, check your cable/DSL
speed at http://www.broadbandreports.com/stest. Your cable/
DSL provider's connection speed can vary; if your speed does
not meet the minimum requirements of 90 Kbps uplink and
downlink at this time, you may want to try again later.
3. You can also try disconnecting the phone and using a
different corded or cordless phone.
29
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Do you have a question about the Centillium MTA-1 and is the answer not in the manual?