Hi Everyone,
Hopefully someone have the same issue about connecting P-series to a Panasonic NS1000 PBX. The Panasonic Unit is already activated its SIP capability. I already tried to make an account trunk and input its Username, Auth. Name and Password but still there is no connection establish. These units are installed in the same LAN so there is no problem about the network also we didn't change port numbers.
hopefully someone can answer this.