atcomsystems.ca/forum Forums TDM Business Telephone Systems Mitel Telephones & Systems Newbie - Mitel CS-5200 "ARS Unavailable" after power cut

System Type: Mitel CS-5200
Release Version: mtl-5000-3_2-release-16
Call-Processing Version: 3.2.4.60 UK


Hi All,
We recently had a power outage. After powering the phone switch back up no one could call us and we could only call internal extensions.
If we try to dial out on our Inter-Tel handsets we get the following message: ARS Unavailable.

I'm afraid I'm a bit green when it comes to telcomms and only recently inherited this phone system.

Can anyone point me in the right direction to identify/resolve the problem?

I do have access to the switch using Mitel's Session Manager application.

Thanks in advance for any help & advice offered.

M.

ARS Unavailable indicates the PBX doesn’t see the phone lines.

This could be caused by a hardware failure, programming issue or problem with the trunks.

Hi DND,
Thanks for the pointers. As I said I really have know knowledge of this system at the moment.

I'm pretty much a DB programmer at heart and have been chucked in the deep end with this I'm afraid.

Any chance you could give me some direction on how I could test/diagnose issues with the trunks or hardware?

I can’t teach skills on-line that take years to acquire. You need a trained technician on site to fix your problem.

Hi DND,
I totally understand. I wasn't really asking you to teach me anything. I suppose I was really asking if there are any diagnostic utilities that could be running. I'm quite capable of doing some research. It's just that at the moment I could do with narrowing my field of investigation.

We've got a support company who are working on the issue. However they are being particularly rubbish at sorting the problem. I thought if I could get a bit of a handle on what the issue is I could get them to focus a bit more.

Not to worry. I'm sure I'll muddle through.

Thanks for the advice.

M.

Marc, you'll probably discover that the dial tone from the telephone company is not there. Be they plain old telephone lines, PRI, T1, Voip trunks or whatever. If you have a Broadband link to the internet, how well is it working?

If you have POTS lines, you'll need to verify that they work at the telco's demarcation. If you have PRI/E-1 or other ISDN, you'll need to verify that they have power at the NIU and that the NIU wasn't fried.

A qualified technician onsite will make short work of it, and someone fiddling round with the wires will make a pig's breakfast.