For one, I'd upgrade that Desktop Manager to 4.x, although this won't resolve your issue. Did you enter in the carrier specific APN information as stated on page 1? Did you disable IP header compression?

Alright, I've been playing around with a windows laptop and my 7520 for a bit, and so far this is what I have found:

1. With the desktop software installed and the handheld manager running after a restart, the modem is recognized and will successfully query.

2. Opening up hyperterminal and typing in the same AT commands that windows does gives the same results (logically)

3. Trying to connect to the "S=2" Packetstream number kills the capital "L" of the "NXTL" service indicator.

4. Typing ATDT into hyperterminal yields a "CONNECT" response after which garbage is dispensed. Escaping the modem using +++ a few times gets back to command mode. Again, after doing this the capital "L" in NXTL is reverted to a lowercase version.

After performing items 3 or 4 and then disconnecting the USB cable turns the radio off. Turning the radio back on effectively resets the modem and restores normal functionality.

I tried downloading the Nextel Dashboard software (the updated Packetstream software) but with the same results.

Hopefully with everyone working together (developers and people with close connections to Nextel's tech people), this may be a possibility.

I will try upgrading the desktop to 4. It can't hurt! And yes, i did enter all APN info as stated and removed Ip comp.

ok, now i remember why i dont have the desktop v4 installed. i get an error during the installation of x-thinpro? "An error occured during the move data process: -132"

Any thoughts?

I just got my cingular 7290...upgraded from a 7280. After upgrading the handheld to version 4.0.0.219, and following all of the instructions on this forum for configuring my device as a modem, I didn't run in to any problems. My company already had unlimited data on all the devices, so I guess the cingular tags I needed on my account were already there. The speed is about 115 Kbps, so we are not talking blazing speeds, but to be able to surf from anywhere with Cingular towers is pretty sweet. The only thing now is to figure out how to get my company's VPN to work through the modem or to use the BES to allow me to surf within my companies network. If anyone has any ideas on that, I would love to know. Let me know if anyone has any questions.

I had trouble on the VPN part - It appears GRE tunnel traffic for the PPTP VPN I was trying to connect to is firewalled/unallowed. Or maybe it's just some kind of limitation in the IPmodem implementation. No idea.

Do you use a program called x-thinpro? Could be residual installation files. Delete the contents (or as much as you can) of the C:\Documents and Settings\<username>\Local Settings\Temp directory and try again.

Hello - I just got the 7750 from Sprint. I've been able to use my other mobile phones for a modem on Sprint's network so I'm confused as to why the 7750 won't work. Is this a hardware or BB Software issue? Basically I'm wondering if I should get a different model or wait it out.

7750 is not a supported model. There is no modem in the 7750.

Please read the "Supported Models" section -- you'll see only the 7250, 7290, 7100 and 7520 are the only models that have a modem in it.

Of these models, only the 7100 and 7290 have successfully been used as a modem on T-Mobile, Cingular, AT&T. Nextel has not yet allowed the 7520 to be used as a modem, and Verizon/Bell has not yet allowed the 7250 to be used as a modem.

Old text may not be clear, so to make things clearer, I have now edited:Newly changed into the following:Hopefully this will make it clearer to new users ;)
Before asking questions about supported models and carriers please click: BlackBerry Modem FAQ
.

I'l pledge 10 buck to to get this to work on the 7520

Same.

Interesting - per the specifications, http://www.blackberry.com/products/h...erry7750.shtml, of the 7750 from RIM I was under the impression that the 7750 has the same "Embedded RIM® wireless modem" as the rest of the "compatible" devices.

I have just run into the same problem. It appears no one was able to give you an answer. Were you able to solve the problem?

Technically, a modem doesn't necessarily mean a "modem for PC's". That kind of "modem" already exists in all digital cellphones ever since the first digital cellphone -- it's the only way to do digital phone, WAP, email, or any other type of data inside the cellphone. It modulates-demodulates the analog airwaves (all RF transmissions are analog, they have to be converted to digital) into the digital bits and bytes needed for digital voice reception, displaying WAP pages, HTML pages, emails, etc, on the cellphone screen.

Hope that explains things and clears up the confusion!

For the purposes of terminology "modem" mentioned on this forum means a modem for connecting to PC's rather than an "internal-use-only modem (for digital voice transmissions, WAP, email, TCP/IP stack, MDS, etc, on the BlackBerry itself only)"

Is the data still accurate that an ATTWS 7100g can be used as a modem? If I am using a BES 4.0, do I have to worry about any account settings with ATT?

That's because that folder doesn't have modem drivers. That folder contains virtual serial port drivers. Reinstalling your Desktop Manager software will re-create your modem entry.

You shouldn't have problems with Cingular Blue, but I think 7100g's can only be used on Cingular Orange. If that's true, you have to follow the extra hoops of getting Cingular to add access to wap.cingular or isp.cingular to your account. Try calling Cingular and getting the "Data Connect" plan added to your account, this may be just what the doctor ordered.

However, if you're really on Cingular Blue (AT&T), it should now already be enabled, and you should follow the instructions for AT&T.

To make life easier, you may want to test a non-web-browser TCP/IP application on your BlackBerry (i.e. Verichat Trial), and once that works, it's much easier to get BlackBerryModem working.

I have seen a lot of things on this posting that helped me get to success with AT&T (Blue) and Cingular (Orange), but found that there is a mixed configuration that I required. I'm an AT&T (Blue) account as Cingular moved me to AT&T for some reason to get the best 2000 minute plan and unlimited data access rates.

I was receiving considerable problems setting up my BlackBerry 7100g modem with either Windows 2000 or Windows XP. I could not get any help from AT&T/Cingular. However, persistence paid off. I used a combination of configuration settings and now the modem works flawlessly for both Operating Systems. This configuration was based on the newest BlackBerry Desktop Software 4.0.0.33 and BlackBerry Handheld Software 4.0.0.274 that I downloaded and applied them on 3/18/2005 from https://www.blackberry.com/Downloads...E4F82F9F00E7D4

Here are the instructions for what I did:

Step 1 - Connect Your BlackBerry 7100g

Make sure your BlackBerry is connected by USB cable, and your BlackBerry Handheld Manager is running (just launch BlackBerry Desktop to run it.) This is necessary for using the BlackBerry as an external modem. You cannot use BlackBerry as a modem unless you have BlackBerry Handheld Manager running in the background!

Step 2- Verify Modem is Functioning Properly

Go to Control Panel -> Phone & Modem Options. In the Modems tab, you should see a new Standard Modem (it will not say BlackBerry so do not get confused) on a new port (such as COM3, COM6, COM7, etc.). Click Properties -> Diagnostics -> Query Modem. You should see the following on Windows 2000 (below, “OK” will be replaced with, “Success” on XP if you want to get real technical):

ATQ0V1E0 - OK
AT+GMM - BlackBerry IPmodem
AT+FCLASS=? - OK
AT#CLS=? - OK
AT+GCI? - OK
AT+GCI=? - OK
ATI1 - Research In Motion / BlackBerry IPmodem
ATI2 - Research In Motion / BlackBerry IPmodem
ATI3 - Research In Motion / BlackBerry IPmodem
ATI4 - Research In Motion / BlackBerry IPmodem
ATI5 - Research In Motion / BlackBerry IPmodem
ATI6 - Research In Motion / BlackBerry IPmodem
ATI7 - Research In Motion / BlackBerry IPmodem

Step3 - IMPORTANT SPECIAL CONFIGURATION STEP

Click Properties -> Advanced and add the following extra initialization commands with the appropriate carrier-specific APN Setting (remember I’m an AT&T account on Cingular and therefore am using the AT&T setting):

AT+CGDCONT=1,"IP","proxy"

NOTE: I have seen elsewhere in this forum that the advanced configuration should be +cgdcont=1,”IP”,”proxy” but found I needed the AT and capital letters at the beginning for some reason of the configuration string. I do not get why it was case sensitive as normal modem commands should not matter what case they are in. But, I point out the AT and capital issue for your convenience.

Step 4 - Add a New Internet Connection (some things are a little different on 2000 vs XP but pretty similar so try to follow what I have put here)

2000 - Close the Phone and Modem Options and the Control Panel. Create a new connection with Start -> Connect To -> Show all connections -> Create a new connection; or
XP - Close the Phone and Modem Options and the Control Panel. Create a new connection with Start -> Settings -> Network Connections -> New Connection Wizard.

1. Click Next
2. Select "Connect To The Internet" then Next
3. Select "Set up my connection manually" then Next
4. Select "Connect using a dial-up modem" then Next.
5. Check only the Standard Modem (if prompted).
6. Give the connection a name such as "BlackBerry Modem", then Next.
7. On the next screen, pick one of the following phone numbers, depending on your AT&T/Cingular phone enter phone number *99#
8. Click Next.
9. On the next screen, pick one of the following, depending on your carrier:
If you use AT&T previous configuration information posted in the forum (probably pre-AT&T merger) is:
Username: (blank)
Password: (blank)
THIS NOW APPEARS TO BE WRONG. Therefore you should really use the Cingular Configuration (I know you have half of the AT&T confiruation previously configured if you’re following these instructions. But, just trust me as this works for me on XP and 2000!):
Username:
Password: CINGULAR1

Step 5 – Configure DNS for Cingular

1. Go to Start->Settings -> Network Connections
2. Right-click your BlackBerry Internet icon, select Properties.
3. A window will open. Click the Networking tab.
4. Click TCP/IP Settings and then Click the Properties Button
5. Select "Use the following DNS server addresses:"
6. Enter Preferred DNS server: 66.209.10.201; and Alternate DNS server: 66.209.10.202

Please let me know how you make out or if you found another solution. I hope this helps!

I have the 7290 with v4.0.0.219 with the Cingular service (ex AT&T). I can't get it to regognise the modem through the control panel and it doesn't have the Modem drivers in the C:\Program Files\Common Files\Research In Motion sub directory (it doesn't have the driver folder refered to earlier in this post). Any suggestions?

I worked it out - I upgraded the desktop manager and the modem appeared!

I work for Nextel customer care, it should be possible to use any of their phones as a modem, but you have to call in and request "NOL Dialup"