Hi there
Please ensure that the base stations firmware if up to date this can be found on the gigaset's website and also ensure that the handsets firmware is also .
Please also ensure that SIP ALG is disabled on the internet routers firewall settings as this disrupts SIP packets on the network.
Linda Johnston
Hello - ever since I started using Freshphone about 5 months ago I have problems dialling out. Every 3rd call or so is answered by a voice saying "sorry, I am unable to complete this call as the number is invalid". Even if I successfully dialled that number previously. It is random, all types of numbers, cell or landline.
What could the problem be? My handset is a Gigaset A540IP and my router a Tenda on a 10mps fibre line.