[Asterisk-biz] Need some advice..

[snacktime]

We are looking at providing some limited hosted voip pbx services to
our clients.  Mostly this will involve functionality that is tied into
our ecommerce platform.  For example customers of our clients calling
up to cancel web subscriptions, make phone payments, inquire about
shipping dates, place orders, etc..  Most of which is all automated
and tightly integrated into our platform.

Along with this will be some basic pbx functionality that our clients
have shown an interest in like call queues for their remote employees,
voicemail, etc..

The thing is we do not want to be a voip provider per say, it's not
our core business.  What I would really like is to use one voip
provider as a partner, and find a way where our clients can access
certain parts of our asterisk pbx as if they were registered to our
servers.

If we can't do this then we will probably just have a password
protected voice menu they can call into via an 800 number.  That has
some advantages anyways, but I personally think it would look a lot
better if their voip phone acted like it was a local extension to our
own asterisk server.

Any thoughts on how we might accomplish this?  The simpler the better.

Chris