I have a 7510, through Nextel. I can't find an option anywhere to extend the number of rings necessary before a call rolls to voicemail.

Does anyone know how to do it?

Call Nextel customer service and ask them to change it for you.

They will.

I'll give them a call. It seems like such a simple option, I assumed I could do it myself.

Thanks for the reply.

There is a way to do it yourself with Cingular. Not sure about Nextel though.

Either way it's pretty easy to just call them to request the change.