smart dialing an extension

Can anyone help me getting smartdialing working on my 9500?
I've put my corporation tel number in but the only way I can dial an extension is by setting up a contact with 'x1234' as the tel no. This works and will dial my corporation,wait, then dial the extension.
What I need to be able to do is dial an extension directly from the phone app dial pad but if I dial the 4digit extension on its own I get invalid number.
Is there any way to put in the x or another way to make this work.

Thanks in advance for any help guys.

Posted from my CrackBerry at wapforums.crackberry.com

yes add a "p" and that will add a pause in the speed dial.

You're a star! Thanks.
Knew it had to be something simple!

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