Hello,
Since a while I'm using a Grandstream HT-286 SIP-adapter. It's working fine, but it has the limitation that it only can handle 1 SIP-account. I'm using several SIP-accounts by several registrars (including local phonenumbers in different countries), but unfortunately the Grandstream equipment can only handle 1 SIP account. For example, the AVM Fritz!Box Fon (
Regards,
Roger Vanderheijden