Hotline on FXS/FXO interfaces

Hello people,

I have VOIP set up between two branch offices using Cisco 3600 routers with FXS/FXO interfaces. It works well although sometimes interfaces hung. My big problem right now is that we need to set up a hotline so that when a customer care line is busy on one branch calls should be rerouted on the voip path to the other branch.  My problem is how to set up the router so that when calls come it should automatically dial a particular number, which is the customer care number for the other branch and vice-versa. dial paterns are confusing me here!! Any one know of the guide I can use.

Thanks in advance.

Kind rgds,
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Use "connection plar" on the side that needs to call immediately.

Reference the following:

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Voice Over IP

From novice to tech pro — start learning today.