The main issue I believe lie in Use P-Preferred Identity Header No in your profile you had this set to yes and Disable Reliable Provisional Responses set to No
Disable Reliable Provisional Responses
Select Yes to disable the use of reliable provisional responses (PRACK) on outgoing and incoming calls, unless the Required Header is received on incoming calls. Most Peers now support PRACK and this can be useful in interoperability scenarios with the PSTN (see RFC 3262). If the SIP Peer also supports PRACK, it is recommended that this option be set to No.
Use P-Preferred Identity Header
If you enable this option, the system uses the Default CPN data to build the P-Preferred-Identity header. No display name is shown in this header. A P-Preferred-Identity will not be included in messaging if the