help with voice gateway routers and checking what numbers are active.

Dear experts,

I have Cisco voice gateway routers and I need to know if there are any fax lines active in this organization. Is there a way to figure it out and what is the process?
unfortunately, the company does not have enough info but they have many MFP printers with fax lines and are working.

Thank you
LVL 5
SR ZakNetwork Solutions Asked:
Who is Participating?
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.

Timothy EstesSr. Voice EngineerCommented:
The be-all-end-all of seeing which numbers land at a company is a CSR or Customer Service Record from the telco. This can be ordered by whoever pays the bill. the 2nd best way is to look at the bill. If you have technical questions about what lands on a trunk (SIP or PRI) run the appropriate debug on your voice gateway(s) and start dialing numbers that you think are assigned. For SIP, use debug ccsip messages. For PRI use debug isdn q931. Neither of these debugs will cause an issue on the router, in fact, I leave some of them running forever.

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
Printers and Scanners

From novice to tech pro — start learning today.