To whom ever can help me, i am just testing the Google Firebase push for 3CX at the moment and i have a quick question. Am i able to use the 1 server key across several different V15.5 tenancies or is it 1 key per tenancy? I am able to add another server key but i can't specify a namr for the key and can't restrict it to a specific IP address. On the existing GCM platform that i am currently using, i have created a key per 3cx tenant and restricted the keys to a specific IP address. (we have a V14 multi-tenancy and we organise the push keys for our customers) If anyone can clarify this for me that would be much appreciated. Kind Regards Michael.