Q.1 General

M.1 P‑CSCF located in visited network

M.2 P‑CSCF located in home network

M.3 P-CSCF located in visited network and with VPLMN loopback possibility

N.1 Origination procedures

L.4 QoS related concepts when using 3GPP2 Packet Data Subsystem

L.7 Relationship to 3GPP Generic User Profile (GUP)

L.5 IP version support in IMS when using 3GPP2 Packet Data Subsystem

L.6 Address and identity management concepts

K.2 Overall architecture