cannot connect with one particular number

[corystes]

There is one particular number I cannot connect to.  At first I was always getting a busy signal - even when with the person and the phone clearly not in use.  Lately it has developed to  'you have dialled an incorrect number, please check and dial again.'  This is in spite of checking the number is correct, and having other people dial it successfully.  It happens with the stored number, and with manual dialling, but not if a text is sent.  Deleting and re-installing the number has no effect.  The receiving phone has no blocks in place.  It is with Sky - piggybacking on O2.  Any suggestions gratefully received.

[bristolian]

CS reports are definitely the way to go here, they can initiate a call trace if necessary.

Another test would be whether CLI-present or number-withheld makes any difference. It shouldn't affect call routing, but may alter the device behaviour at the called end.

[corystes]

Regret not a techno expert.  Would appreciate a simplified answer, some more detail so I can understand.

[bristolian]

Try calling the affected numbers with caller-ID (CLI) withheld and also presented.

Otherwise report the issue to CS, they may need to raise further investigations or trace some affected calls.

[corystes]

thanks, will try that