the Lines are not released after call being transfered to cell phone

[wang241]

Dear all,

First time being here. How are you all doing?

I have had this issue for a while and it is bothering us.

Our system is AVAYA IP Office 500. We set up regular extensions (like x611) and cell phone extensions (like x811) which are being forwarded to cell phones.

When someone calls in, press 1 to be transferred to x611, if no one picks up, it will be transferred to a cell phone #. When the call finished, we see 2 lines used are not automatically released. So two lines are still show busy and nobody can use that 2 lines until I manually disconnect that two lines.

Anyone knows the settings on how to automatically release the lines?

Appreciate any feedback on this issue.

Thank you very much.

Steve

[thiel2]

What kind of service do you have from the phone company? I suspect that it is just regular loop start CO lines. This would mean that the phone company is not sending you the disconnect clear signal on the lines when the distant party has hung up. Without receiving that signal, the phone system does not know to disconnect the calls. Unfortunately, many telephone companies do not understand the feature when you ask for it, or are unable to provide it depending on the central office equipment.

[wang241]

Dear thiel2,

Thanks you very much for the reply.

I check my phone switch and found out there is a parameter called "Disconnect clear" with 600ms as the number .

I thought it will do the job after the call is hung up.

Actually it worked for some of the calls. But there are always several calls which hold the lines, until I manually disconnect them.

Any other comments would be greatly appreciated.

Thank you all again.

Steve

[wang241]

Hi,

I was told by my phone company it is the AVAYA IP office didn't set up right on this.

What parameters are for the "disconnect clear"?

Thanks,

Steve

[thiel2]

Yes, this is the usual fight with the telephone company. They say it is the phone system, you say it is the telephone company.

The disconnect clear should be set to a lower value than the phone company is sending, PROVIDING that the phone company is actually sending you the open loop disconnect.

Please see this Calling Party Control bulletin from Sandman.com

http://www.sandman.com/cpcbull.html

[mcgarcia]

Disconnect Clear

Hello,

Having the same issue. I have a ground start on a Redcom MDX. They are still saying avaya is the problem. I have adjusted all my Disconnect Clear and still won't work. They are saying they are sending disconnect clear. Any thoughts?

[thiel2]

If you truly have GROUND-START trunks, they have to be connected to an external ATM expansion module, as the ATM-4 module that mounts on a base card in the 500 only support LOOP-START lines. Also, Ground-Start trunks do not use "open loop disconnect" due to their nature, but automatically clear disconnected calls.

So you need to do more work with your telephone company or the organization that is providing you with lines off of a Redcom MDX switch to resolve this.

[richa164]

ok where are you based , in the uk we set disconnect clear to 500m/s and ask the telco side must be set to 800m/s , ring them back and ask them what it is set to do not tell them you need 800m/s , when they tell you ,then demand they set to 800m/s ....... this is not the ipo ... my guess is the lines are set to 100m/s on the telco side