Hello, so far I am an individual user experiencing to setup a CP-8841-3PCC on base of pure web client (no CUCM) to a router providing SIP fuctionality (here: Fritz!Box7490)
Actually, incoming calls can be received properly (which implies registration goes ok), however outgoing calls (networkwise processed as INVITE in SIP) are not at all handled.
In order to sort this out, I am wondering, which settings under Voice => Ext x may be relevant to formulate the "From" field different to
From: "Anonymous" <sip:anonymous@anonymous.invalid>.
In appreciation on each comment / tip
Wolfgang
