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Thread ID: 24316 2002-09-08 05:58:00 Jetstream & Cordless phones... falvrez (390) Press F1
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77605 2002-09-08 05:58:00 Have recently upgrade my net connection to Jetstream, which is so much faster than 56k...but.
My panasonic cordless phone is a no go - nobody can hear me on the thing and I can't hear anyone. It's a pain in the ass to go back to a phone with a cord!
Yes I have the filters installed, naturally.
Has anyone had this problem? Surely there are some who have. What brand of cordless to buy then? I don't want to buy (for example) a uniden cordless only to find that it's the same problem I have now.
Any help greatly appreciated.

BTW - a good Panasonic Cordless phone for sale!

Cheers
Fred
falvrez (390)
77606 2002-09-08 06:01:00 Hi falvrez.
I have jetstream and uniden cordless phone. No problems at all. Have you tried maybe different filter? Don't know what is in them but could be faulty.

sam m
sam m (517)
77607 2002-09-08 06:24:00 I would be interested to know what frequency your phone is, as some can use 1.725, 1.74, 1.755 MHz (channel 11A, 12B, 13C)

Now these are in the ballpark for RF emissions from Jetstream.

The majority of phones are in the 30 - 44 Mhz region but you may have one of the more unusual ones above?

The better ones are the Panasonic 2.4 GHz ones but they are $300
godfather (25)
77608 2002-09-08 09:45:00 I also have a Uniden cordless phone and have no problems with my Jetstream connection. klarge (1815)
77609 2002-09-08 09:51:00 I have Uniden cordless phones with Telecom Jetstream

Babe.
Babe Ruth (416)
77610 2002-09-08 10:48:00 Hi,this is a known problem with adsl and cordless phones.Only seems to happen on Panasonic's though.You could try a full install instead of the filters,but no guarantee.

Peter
Peter Coleman (597)
77611 2002-09-08 21:20:00 I have Jetstart (or whatever euphemism it is now known by by the gnomes at Telecom), and two Panasonic 900MHz phones - one in my study near the computer, and one in the back of the house. No problems. I also have a Uniden in the bedroom - again, no problems. A bit embarrassing really to admit to having three cordless phones...

John
John H (8)
77612 2002-09-10 20:09:00 Thanks for the reply - yes have 3 filters (all Dynalink brand tho) and have tired them all with same result. falvrez (390)
77613 2002-09-10 22:33:00 I think the reason why the filters aren't working is because the interference is happening before the telephone, ie as it travels from the handset to the baseunit.
Unfortunately i don't know a solution to it, and i don't think you will find one, it will be a matter of having to replace the cordeless phone.
A lot of people have been posting and saying it hasn't happened with their Uniden phone, this is because Uniden uses a different RF, so maybe by a Uniden phone, but in saying that a cheaper model of panasonic or a more expensive one will have different RF's as well (otherwise you would be able to hear neighbours using their cordeless phone)
Actually when i think about it, you should ring up an appliance repairer and ask them if your model of phone can have the RF frequencies changed. (usually done by opening up the phone and turning a few knobs)
roofus (483)
77614 2002-09-11 00:33:00 I have Jetstream and use a Panasonic portable phone with no problems . It operates in the 34 to 40 MHz frequency range . I also have a UHF Uniden that as expected is unaffected .

One reason for excessive interference could be your telephone wiring . Modern wiring uses twisted pairs and these are less inclined to radiate RF . Older wiring (from 50s & 60s) is not necessarily twisted (I found two such versions in my house while rewiring in my phone system in Cat5E as preparation for Jetstream) . If you have old or botched wiring you could have a very effective radiating loop present .

It is unlikely to be anything wrong with the phone, and I do not think it will be a directly conducted problem either . It much more likely to be an issue with your Jetstream installation . The filter is intended to part off the HF for the modem to a dedicated outlet . Even the plug in versions should do this and although I have never tried it, I don't think you would be able to use a phone plugged into the HF filtered output as speech frequencies would be lost .

I could be wrong on that though, but plugging an phone into the output of the filter would probably mangle your Jetstream service .

Did you have an official Telecom install, or is it a "do it yourself" jobbie with plug in filters?

Also, check the handbook for your phone and post the operating frequency, or do a search on the model number and see what pops up .

Cheers

Billy 8-{)
Billy T (70)
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