Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations Chris Miller on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

Weird Calling Issue

Status
Not open for further replies.

james1982

Technical User
Nov 14, 2003
441
GB
I have a really weird issue - 3300 MXE rel 8 ur 5.
An IP user onsite - 5330 - intermittently between the hours of 8am and 9am gets upto 30 incoming external calls - these display the main company cli, when answering he hears fax tones or nothing - the call clears.

I have run logs read smdr all match xxxx and can see the calls are been generated from numerous ports / devices on the asuII - fax machines
I have changed the COS to try lock everything down all to no avail.

Anyone seen anything like this before??
Any suggestions??

Thanks
 
Does the IP user's extension equal the local area code? If so, perhaps the fax machines are dialing without using the ARS access code/leading digit (typically 9), hence making an internal call. I see this when fax machines make use of speed dial entries and no one updates them.

_______________________________________________________________

If you did not take enough time to get it right the first time...

What makes you think that you have time to fix it?
 
no the ip extension is different to the area code.
As a temporary fix / to assist in proving ive restircted the users ddi in ars. If anyone needs to call the user they should be dialling him on his internal extn number and not his ddi.

In theory we should no longer experience the fault / this will also prove it is an extension dialling his ddi and not calling his extn internally.

At the minute I cant think what else to do??????
And as to teh cause im even more confused!!!!
 
There should be 2 SMDR records.

Have you looked at the outbound digits to see what the faxes are dialing?

Do the faxes have built in speedcalls that might be misprogrammed.

*******************************************************
Occam's Razor - All things being equal, the simplest solution is the right one.
 
yes I initially ran logs read smdr all match 8000 - this is the main company number. Clearly I got thousands of entries.
I then ran logs read smdr all match 8844 - this is the users IP device.
comapring the 2 logs I could see 17 devices on the asu called the users ddi, on the other log i could see the calls rang the users ddi at virtually the same time - within a couple of seconds.
This proved to me it was analogue extns calling the users DDI. Customer doesnt use speeddials.

BIZARRE!

Think i am just going to have to monitor now - restriced the ddi in the ars so in theory the issue shouldnt reoccr if my thinking is correct
 
I was talking about a speeddial build into the fax, not the 3300

*******************************************************
Occam's Razor - All things being equal, the simplest solution is the right one.
 
Any chance that it's incoming calls that are triggering this?

Perhaps the key piece of information is that it's only from 8am-9am, perhaps there is a COS that is causing this (do they use night service?)
 
When it starts happening, forward to a fax machine and see if you get a fax. Perhaps you'll be able to see whos sending it.

Ralph
 
good idea ralph!
Irwin - yes they use night service, this is controlled via 5550 consoles. Ive checked the COS but cant think what may affect this?
 
I think the Night service is a Red Herring as the reported times also coincide with the user being on site to notice.

Forwarding to a FAX will only tell you what you already know.

Depending on your skill level, a couple of options occur to me.

1) - Modify the COR of the FAX's to block the ability to call the number in question.

2) - Modify ARS to block the number period.

3) - Modify ARS to send the call from the Fax to a different station for troubleshooting purposes.

All of the above assume the call is being dialed by the FAX which agrrees with the reported facts.

*******************************************************
Occam's Razor - All things being equal, the simplest solution is the right one.
 
I've already modified the cor to restrict the faxes from dialling the number in question.
Think I'm going to leave it at that for now, possibly upgrading to mcd4 soon
So I expect this issue to clear up then

Thanks all for replies
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top