Verizon and TAP

[sahaynes]

I have been troubleshooting this for the last day or so but I have had no luck. I am trying to use TAP to send a message to a Verizon Blackberry. Does anyone see anything that sticks out in this log as being an issue? I have tried different baud rates and init strings. I have tried other Verizon phone numbers as well.

6/17/2009 1:57:21 PM Start connection to carrier: verizon
6/17/2009 1:57:21 PM Connect using TAP protocol
6/17/2009 1:57:21 PM Setting communication parameters
6/17/2009 1:57:22 PM Sent:AT<CR><LF>
6/17/2009 1:57:22 PM Attempting to reset modem
6/17/2009 1:57:24 PM Sent:AT<CR>
6/17/2009 1:57:25 PM Received:<CR><LF>OK<CR><LF>
6/17/2009 1:57:25 PM modem reset
6/17/2009 1:57:25 PM Attempting to send carrier init string
6/17/2009 1:57:25 PM Sent:AT&FQ0V1X4&D2+MS=V22,0<CR>
6/17/2009 1:57:26 PM Received:<CR><LF>OK<CR><LF>
6/17/2009 1:57:26 PM Carrier init string sent
6/17/2009 1:57:26 PM Dialing carrier
6/17/2009 1:57:26 PM Sent:ATDT918668230501<CR>
6/17/2009 1:57:34 PM Waiting for connection
6/17/2009 1:57:54 PM Received:<CR><LF>CONNECT 1200<CR><LF>
6/17/2009 1:57:54 PM Connected to carrier
6/17/2009 1:57:54 PM Waiting for protocol initialization
6/17/2009 1:57:55 PM Received:Trying tap.css.vtext.com (69.78.128.199, 1500)... Open<CR><LF>ID=<LF>
6/17/2009 1:57:55 PM TAP protocol detected
6/17/2009 1:57:55 PM Sent:<ESC>PG1<CR>
6/17/2009 1:58:06 PM Sent:<ESC>PG1<CR>
6/17/2009 1:58:16 PM Received:ID=<LF>
6/17/2009 1:58:16 PM Sent:<ESC>PG1<CR>
6/17/2009 1:58:26 PM Received:<CR><ESC><EOT><CR><LF><CR><LF>[Connection to tap.css.vtext.com closed by foreign host]ET
6/17/2009 1:58:26 PM Attempting to hang up modem
6/17/2009 1:58:28 PM Sent:AT<CR>
6/17/2009 1:58:29 PM Received:<CR><LF>OK<CR><LF>
6/17/2009 1:58:29 PM modem hung up

Sometimes when the connection is closed I get this instead of the "closed by foreign host" message

Received:<CR><ESC><EOT><CR><LF><CR><LF>[Connection to tap.css.vtext.com closed B<17>L<CR><LF>NO CARRIER<CR><LF>

[Tech Support]

This may sound trivial but take the ,0 off of the end of your init string. There are some modems that just won't properly connect to a TAP terminal if it's there.

[sahaynes]

It still sends the string but it has the same result.

[Tech Support]

What make and model of modem are you using?

[sahaynes]

Zoom USB External, Model 3095

[Tech Support]

Hmm... try setting the baud rate to 300 and switch the init string to auto. Chances are, it'll fail, but I want to see what init string it picks out for the 300 baud connection.

[sahaynes]

Here is the log from changing the baud to 300 and the string to auto.

6/18/2009 12:05:40 PM ====================================
6/18/2009 12:05:40 PM Start connection to carrier: verizon
6/18/2009 12:05:40 PM Connect using TAP protocol
6/18/2009 12:05:40 PM Setting communication parameters
6/18/2009 12:05:40 PM Sent:AT<CR><LF>
6/18/2009 12:05:41 PM Attempting to reset modem
6/18/2009 12:05:43 PM Sent:AT<CR>
6/18/2009 12:05:43 PM Received:<CR><LF>OK<CR><LF>
6/18/2009 12:05:44 PM modem reset
6/18/2009 12:05:44 PM Auto detecting modem init string
6/18/2009 12:05:44 PM Sent:AT&F0Q0V1X4&D2&B1&K0&M0&N1<CR>
6/18/2009 12:05:48 PM Received:<CR><LF>ERROR<CR><LF>
6/18/2009 12:05:48 PM Sent:AT&FQ0V1X4&D2N0+MS=B103,0<CR>
6/18/2009 12:05:52 PM Received:<CR><LF>ERROR<CR><LF>
6/18/2009 12:05:52 PM Sent:AT&FQ0V1X4&D2N0+MS=B103<CR>
6/18/2009 12:05:56 PM Received:<CR><LF>ERROR<CR><LF>
6/18/2009 12:05:57 PM Sent:AT&FQ0V1X4&D2+MS=B103,0<CR>
6/18/2009 12:05:57 PM Received:<CR><LF>OK<CR><LF>
6/18/2009 12:05:57 PM Attempting to send carrier init string
6/18/2009 12:05:57 PM Sent:AT&FQ0V1X4&D2+MS=B103,0<CR>
6/18/2009 12:05:58 PM Received:<CR><LF>OK<CR><LF>
6/18/2009 12:05:58 PM Carrier init string sent
6/18/2009 12:05:58 PM Dialing carrier
6/18/2009 12:05:58 PM Sent:ATDT918668230501<CR>
6/18/2009 12:06:06 PM Waiting for connection
6/18/2009 12:06:13 PM Received:<CR><LF>CONNECT<CR><LF>
6/18/2009 12:06:14 PM Connected to carrier
6/18/2009 12:06:14 PM Waiting for protocol initialization
6/18/2009 12:06:18 PM Sent:<CR>
6/18/2009 12:06:21 PM Sent:<CR>
6/18/2009 12:06:25 PM Sent:<CR>
6/18/2009 12:06:30 PM Received:_Zx?U#^<28>O}_=<29>{K?{<17>uj>r?^z/R{;=<US>[~j;<16><US>^<US>
6/18/2009 12:06:30 PM Sent:<CR>
6/18/2009 12:06:36 PM Received:_z}~6{;_y3??_<<15>_{}[ywnsW~{ZlO{.;72<29>m^=sg^{~Of~[i?c{i~yYn<24>Y2<<11>=Nk/;nBY?9O{n~8k?}v~{x<US>}]A
6/18/2009 12:06:36 PM Attempting to hang up modem
6/18/2009 12:06:39 PM Sent:AT<CR>
6/18/2009 12:06:40 PM Received:<CR><LF>OK<CR><LF>
6/18/2009 12:06:40 PM modem hung up

[Tech Support]

Okay, we're definitely running into a communication mismatch issue, otherwise you wouldn't be getting the 'garbage' characters close to the end of the log. Try to take the ,0 off of the init string and let's see what happens.

[sahaynes]

Here it is with the ,0 removed and still at 300 baud.

6/18/2009 2:01:30 PM ====================================
6/18/2009 2:01:30 PM Start connection to carrier: verizon
6/18/2009 2:01:30 PM Connect using TAP protocol
6/18/2009 2:01:30 PM Setting communication parameters
6/18/2009 2:01:30 PM Sent:AT<CR><LF>
6/18/2009 2:01:31 PM Attempting to reset modem
6/18/2009 2:01:33 PM Sent:AT<CR>
6/18/2009 2:01:33 PM Received:<CR><LF>OK<CR><LF>
6/18/2009 2:01:34 PM modem reset
6/18/2009 2:01:34 PM Attempting to send carrier init string
6/18/2009 2:01:34 PM Sent:AT&FQ0V1X4&D2+MS=B103<CR>
6/18/2009 2:01:34 PM Received:<CR><LF>OK<CR><LF>
6/18/2009 2:01:35 PM Carrier init string sent
6/18/2009 2:01:35 PM Dialing carrier
6/18/2009 2:01:35 PM Sent:ATDT918668230501<CR>
6/18/2009 2:01:43 PM Waiting for connection
6/18/2009 2:01:50 PM Received:<CR><LF>CONNECT<CR><LF>
6/18/2009 2:01:50 PM Connected to carrier
6/18/2009 2:01:50 PM Waiting for protocol initialization
6/18/2009 2:01:54 PM Sent:<CR>
6/18/2009 2:01:57 PM Received:'eing tap.css.ltext.com (69.78.128.199, 1500)... Open<CR><LF>
6/18/2009 2:01:57 PM Sent:<CR>
6/18/2009 2:02:01 PM Sent:<CR>
6/18/2009 2:02:06 PM Received:U~
6/18/2009 2:02:06 PM Sent:<CR>
6/18/2009 2:02:13 PM Attempting to hang up modem
6/18/2009 2:02:16 PM Sent:AT<CR>
6/18/2009 2:02:16 PM Received:<CR><LF>OK<CR><LF>
6/18/2009 2:02:16 PM modem hung up


The second time I tried with these settings it tried to go to tap.cssvtext.com (69.78.128.199, 1500) but had the same issue.

[Tech Support]

and this is why modems can be a little difficult to deal with. It's part tech knowledge and part voodoo.

Just out of curiosity, are you using even parity, 7 data bits, and 1 stop bit?

[sahaynes]

Yes. E,7,1

[Tech Support]

Right. Don't change the init string to (auto), leave it as is, and set the baud rate to 9600.

[sahaynes]

6/18/2009 2:48:13 PM ====================================
6/18/2009 2:48:13 PM Start connection to carrier: verizon
6/18/2009 2:48:13 PM Connect using TAP protocol
6/18/2009 2:48:13 PM Setting communication parameters
6/18/2009 2:48:14 PM Sent:AT<CR><LF>
6/18/2009 2:48:14 PM Attempting to reset modem
6/18/2009 2:48:16 PM Sent:AT<CR>
6/18/2009 2:48:17 PM Received:<CR><LF>OK<CR><LF>
6/18/2009 2:48:17 PM modem reset
6/18/2009 2:48:17 PM Attempting to send carrier init string
6/18/2009 2:48:17 PM Sent:AT&FQ0V1X4&D2+MS=B103<CR>
6/18/2009 2:48:18 PM Received:<CR><LF>OK<CR><LF>
6/18/2009 2:48:18 PM Carrier init string sent
6/18/2009 2:48:18 PM Dialing carrier
6/18/2009 2:48:19 PM Sent:ATDT918668230501<CR>
6/18/2009 2:48:27 PM Waiting for connection
6/18/2009 2:48:34 PM Received:<CR><LF>CONNECT 9600<CR><LF>
6/18/2009 2:48:34 PM Connected to carrier
6/18/2009 2:48:34 PM Waiting for protocol initialization
6/18/2009 2:48:38 PM Sent:<CR>
6/18/2009 2:48:41 PM Received:'eing tap.css.vtext.com (69.78.128.199, 1500)... Open<CR><LF>
6/18/2009 2:48:41 PM Sent:<CR>
6/18/2009 2:48:45 PM Sent:<CR>
6/18/2009 2:48:50 PM Received:U~
6/18/2009 2:48:50 PM Sent:<CR>
6/18/2009 2:48:56 PM Attempting to hang up modem
6/18/2009 2:49:00 PM Sent:AT<CR>
6/18/2009 2:49:00 PM Received:<CR><LF>OK<CR><LF>
6/18/2009 2:49:00 PM modem hung up

[Tech Support]

If you would, email your contact information to support at notepage dot com

Sometimes it's easier to go over modem voodoo by phone than by forum.