mahmoud

dear all
i have problem here with my customers whole the IPOs which i installed
you cant make tunk to trunk transfer and the customes are going to cancel the orders
regarding this issue
i can do that and i tried that soo many times but the line will hanging for along time
i mean i make trunk to trunk transfer but the lines will stuck
becaus they have analog co lines
is there in the system any option can help me make release for lines after trunk to trunk transfer call finish .
please can any one help me to recover this problem


thanx in advice

Cephas

Not sure what country you are in, but see if the CO can provide you with a feature called "reliable disconnect" or "disconnect clear" or similiar. Basically they send a special signal down the line when a caller hangs up, signalling the PBX that it can drop the trunk.

Also make sure the "disconnect clear" and "allow forwarding" options are ticked in the line form under the analog tab.

If this fails, you will need to switch to ground start lines, which means no caller ID. Also you will need an ATM16 as the 4LS cards only support loop start lines.

Peter

PBXtech.info

 

mahmoud

actually i'm here in united arab of emirats
what you ar mean about "switch to ground star"

thanx in advance
mahmoud

Cephas

I am in Canada, but this advice should still be relevant:

There are two kinds of analog trunks (lines) - loop start and ground start. Loop start is the most common, and give dialtone when you go offhook (completing the loop). Ground start trunks give dialtone when you briefly touch one wire of your tip/ring pair to earth ground. You typically cannot get caller ID over them, but they provide unbeatably reliable disconnect supervision.

Again, the 4 port LS cards that are installed in the B and/or A slots in the back of a 403/406/412 do NOT support groundstart, only the external ATM16 module will take these trunks.

Peter