On 16 Nov 2006 14:21:23 -0800, dkaiser@carl.org wrote in
<1163715683.151366.33510@f16g2000cwb.googlegroups. com>:

>I have a Motorola MPX200 and in the last month have had problems
>sending text messages to people not on the cingular network. I have
>sucessfully sent messages to these same people (family members) before.
> They are on T-Mobile or Verison. Support at Cingular says that they
>have traced the messages and says that they make it through some 3rd
>party company that routes messages between companies.
>
>I have done a MASTER RESET on my phone, and still no change.
>
>Any suggestions?

1. Make sure you're using full international addressing.
2. Make sure to use cell phone numbers, not non-cell numbers.
3. Try replying to messages sent to you by those people.

--
Best regards, FAQ FOR CINGULAR WIRELESS:
John Navas <http://en.wikibooks.org/wiki/Cingular_Wireless_FAQ>