diverting

Here's the situation. These are some standalone single user handsets, and as there's going to be a number of strange SIP devices on the end we can't rely on feature key sync for diverting. It's essentially a response to the PSTN shutdown in the UK My problem however is when a Yealink deskphone...

Dear all, I have several SIP phones and destinations. I need to setup the coverage, which I do using ring groups and call groups. This is working fine enough. As an example when a call come to the destination D, I forward the call to the extension E (set for a sip phone) , that sip phone...