Multi-access call setup

A method for performing call-setup in a multi-access communication system, comprising the steps of:

• paging of a mobile terminal by a first access network, said paging comprising access information, said access information enabling determination of a preferred access network among at least said first access network and a second access network to which said mobile terminal is connectable;
• establishing a call-setup according to said access information;
• passively scanning, in said mobile terminal, the existence of usable base stations of said second access network, said second access network having a lower energy-resource efficiency for keeping a mobile terminal reachable than said first access network;
• and
• reporting data associated with said existence from said mobile terminal to said first access network, whereby said access information being based on said data associated with said existence.

A mobile terminal connectable to a multi-access communication system, said mobile terminal being reachable through a first access network of said multi-access communication system, said mobile terminal comprising:

• means for receiving a paging message from said first access network, said paging message comprising access information, said access information enabling determination of a preferred access network among at least said first access network and a second access network of said multi-access communication system;
• means for establishing a call-setup according to said access information;
• means for passively scanning any existence of usable base stations of said second access network of said multi-access system, said second access network having a lower energy-resource efficiency for keeping said mobile terminal reachable than said first access network;
• and
• means for reporting data associated with said existence from said mobile terminal to said first access network, whereby said access information being based on said data associated with said existence.