10-01-2012, 22:00
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#1
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Inactive
Join Date: Jan 2012
Posts: 3
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telephone extension
hi can any one help? I have put in a new telephone extension cable upstairs (previous cable connector was unstable) problem is when both upstairs and downstairs phoned are connected in the master box upstairs phone will not work (no dialling tone ) when only upstairs phone is connected works perfectly .When downstairs phone is connected works perfectly only when both are connected the upstairs phone will not work at all .Any suggestions. Do I need a filter on the main connection box.
Phone is for my 88 year old mother so need it working as soon as possible
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10-01-2012, 22:02
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#2
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Inactive
Join Date: Dec 2007
Posts: 18,398
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Re: telephone extension
Post moved to the Telecoms forums
Welcome to the site
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10-01-2012, 22:16
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#3
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Inactive
Join Date: Jan 2012
Posts: 3
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Re: telephone extension
any suggestions
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10-01-2012, 22:21
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#4
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Guest
Location: Near Hungerford, West Berkshire
Services: TV: Sky HD, Landline: BT,
Mobile: Orange, Internet: Quite Slow!
Posts: n/a
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Re: telephone extension
Sorry - didn't know that us members had an SLA to answer questions from newbies within 15 mins of posting.
Welcome BTW
---------- Post added at 21:21 ---------- Previous post was at 21:20 ----------
I'd suggest that you go and double check the connections - looks like a mess-up somewhere.
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10-01-2012, 22:25
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#5
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laeva recumbens anguis
Cable Forum Team
Join Date: Jun 2006
Age: 67
Services: Premiere Collection
Posts: 42,042
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Re: telephone extension
Do you have any other phones in the house connected - there used to be an issue, back in the day, that more than 3 or 4 phones caused the symptoms you are describing, due to REN limitations.
From the BT site (but probably valid for VM et al)
Quote:
How many pieces of equipment do you have plugged into the line?.
If you have more than 4 telephones or other pieces of equipment plugged in, you may have exceeded your line´s REN. REN stands for Ringing Equivalence Number.
Most telephones and faxes have a REN of 1, although some older pieces of equipment can have a REN of 3. REN refers to the electricity supply sent to your telephone from the local exchange. On BT lines, enough current is supplied to power devices up to a total REN of 4.
To check if this is the problem, unplug all your equipment, and plug it back in again, one by one, until you locate which device is exceeding your REN limit. If this is the cause of the problem, you could buy an extension booster, which will boost the REN of your line.
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10-01-2012, 22:43
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#6
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Inactive
Join Date: Jan 2012
Posts: 3
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Re: telephone extension
only 2 phones in the house one upstairs and one down and sorry new to all this never been on one of these sites before
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10-01-2012, 23:34
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#7
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laeva recumbens anguis
Cable Forum Team
Join Date: Jun 2006
Age: 67
Services: Premiere Collection
Posts: 42,042
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Re: telephone extension
How old is the downstairs phone (and its REN), and don't forget answering machines count on the REN count.
Try the BT troubleshooting advice in my link above.
__________________
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If only we’re brave enough to be it.
If my post is in bold and this colour, it's a Moderator Request.
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