Apologies if I have used incorrect protocols to send this message but I need help sorting out my Grandstream HT813.
I have reached the stage of successfully registering my ATA with sipgate and making several outbound voip calls. However, I am struggling to understand the technicalities of receiving calls.
I have a PTSN number (original) and now I aso have a sipgate number but I cannot receive calls on my PTSN numbe - The phone rings with the right CID but then disconnects before being answered. Furthermore, I have established that incoming calls to my sipgate number work well!
I look forward to any help you can provide.
Thank you, Mike G