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#30126 09/02/04 05:22 PM
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Another interesting DX80 issue
Customer site:
3 DET sets with ECF to outside locations.
Call the site...dial ext XXX and ECF

Result : Low call volume

Fix??
Changed the jumpers to LONG. The volume seems better, but not good enough and sounds distant (maybe not the best description)to person at the remote location

Has anyone come across this issue and solved the problem. Is it a matter of plaing with the jumper setting until it is better?

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#30127 09/03/04 01:12 AM
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I haven't used the feature. I'll set it up to test over the holiday weekend. I know it should be called extention call conference cause it conferences two lines together to call out as I understand. Whenever two lines are tied together some transmission loss will occur, most digital systems are better then analog but they still suffer some drop off. Where did you get the information about jumpers to enhance the volume?
mark

#30128 09/03/04 01:26 AM
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Mark
The information about the jumper changes is in an SAB on the CCC site. I will send it to you. SAB00090 is the document number. I will email to you also.

#30129 09/03/04 01:13 PM
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You will always have volume problems when conferencing two CO lines through a system.

There is usually a 3-5Db loss from the original inbound call, a 1-2Db loss through the sytem and then another 3-5Db loss back out to the CO and whatever loss from that on out to the terminating end! (Remember a 3Db loss is equal to half the volume)

With the bigger digital systems using PRI or plain T-1 inbound and outbound trunks there is still loss but it is so negligible the human ear can't detect it.

The absolute best way to handle these off site call transfers is to use the CO's centerex transfer service and the calls are transferd by the CO and results in no loss and not taking up two lines.


DJ

#30130 09/03/04 01:39 PM
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I have a customer that had a volume problem when they did external transfers. I spoke to tech support and they recommended that I replace the conference chip. It's been about 6 months now and I haven't heard any complaints. I think you can order the conference chip from the CCC site

#30131 09/04/04 02:24 AM
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Thank you for the recommendations. I will call Comdial tech support about the conference chip to see if it works. The tell the customer to order Centrex service if it does not.


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