Assuming to have an UMTSBOX (ports 501,502), let's configure the Last Calling Service so that a call received by the sim inserted in the port # 501 of the UMTS BOX is routed toward the last number which called the calling number.

Enter into the Abilis control-program or open the configuration file with the Console configurator and type the following commands.

On a working Abilis, the initialization of the CTISYS resource is needed (init ctisys).

Remember to set the LCS parameter to YES in the VTOC routing (the one which routes calls from UMTSBOX toward cluster ).

	Tip
	Check the lcs table to verify the association between calling and called number.