How to mend Bt Synergy 3505

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BT Synergy 3505 - no dialling tone / incoming calls?

I have a BT Synergy 3505 trio home phone. Whenever I try to make a call, there is no dialling tone, plus when ... [Read more]

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BT Synergy 3505 how register a new handset. ?

Have been tring to register a handset to the base but is still not working.

why am I getting the engaged signal when i dial out - BT synergy 3505?

I have a BT synergy 3505 single handset. If I dial out, but hang up because no-one answers I then can't dial ... [Read more]

How do I register handset for BT Synergy trio 3505 please?

I have bt synergy 3505 trio and broke one handset. I have new one but lost instructions so How do I register ... [Read more]

My BT Synergy 3505 will not dial out?

My phone will not dial out even though I can receive calls. I just get the dailling tone when I make a call.

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How do i set the date and time on my BT Synergy 3505?

How do I set the date and time on my BT Synergy 3505 please

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BT Synergy 3505? 2 x handsets 3005? how can i fix the problem ?

2 x New handset saying "NOT REG" I have tried everything that I can think of....following the manual for the 3... [Read more]

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display fault on synergy 3505?

The bottom half of the display screen on my BT synergy 3505 is blank suddenly. I.E. You only get the top part ... [Read more]

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Can i change the frequency on my BT SYNERGY 3505?

I have just installed a netgear wireless router in my house and when it is switched on the caller ID on my BT ... [Read more]

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bt synergy 3505 answering machine?

When i ring home my 3505 does not operate,instead i have the message on my phone-the mail box is full. why is ... [Read more]

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BT Synergy 3505 How can I retrieve deleted messages?

I deleted an important call by mistake

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phone wont let incoming calls?

i can dial out but cannot recieve incoming calls when i ring my land line it says that this number is not rec... [Read more]

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how do you transfer call on bt synergy 3505?

hi, i have 3 bt synergy 3505 handsets,when i answer the phone downstairs,what button do you press to transfer ... [Read more]

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Can anyone help fix my BT Synergy 3505 please?

Ok. I Have BT Synergy 3505 Dect phones (outside of 12 month warranty and a present also so no receipt). Theyv... [Read more]

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How can I fix the settings on my BT Synergy 3505?

I have lost the instruction booklet for my BT Synergy 3505 and would like a new one

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How can I fix my BT Synergy 3505?

How can I reset my BT Synergy 3505 which lost its settings after power cut and I have lost my instruction book... [Read more]

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How can I fix my BT Synergy 3505 phone?

I have only had this phone for about a year. I have one additional handset. The phone was fine up until I we... [Read more]

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Why can't I delete my messages from BT Synergy 3505?

I currently have 32 messages in the answering machine on my phone, but cannot delete any by pressing 'Del'. ... [Read more]

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BT Synergy 3505,3100,3105 etc?

Hi.. just wondered if anyone knows what causes the handsets in the BT Synergy ranges to sometimes have a hi... [Read more]

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2 Base Stations? BT Synergy 3505?

I have just bought a BT Synergy 3505. It says that the phones can connect to more than one base station. I ... [Read more]