Is this acceptable ? "I am calling with Motorola to offer you an exciting p

Question:

Is this acceptable ? "I am calling with Motorola to offer you an exciting plan." if used in a conversation??

" I am calling with Motorola to offer you an exciting offer". Is this sentence acceptable in a conversation over the phone??
Answer only if you rate yourself very good with the language.

Best Answer - Chosen by Asker:

No you are not, you are calling ON BEHALF of Motorola, perhaps even FROM, but most definitely not WITH. Think about it....

Bye.