Amplicomms PowerTel 710 Voice User Manual page 66

H
ELP AND SUPPORT
There is interference in the earpiece and/or internet connection is very slow
when using the phone
You must plug the phone into the wall socket via an ADSL filter if you have
broadband internet on your phone line.
62
Helpline 0844 800 6503 (See page 60 for costs and hours of operation)