unconditional call forwarding is active some of the conditional call forwardings are active call has been forwarded Waiting call is pending (num) The incoming call is a forwarded call.
AT+CSSN +CSSU: AT+CUSD +CUSD: [[]] Internet Service Commands ^SIS: , [, [][, ]] AT^SISO AT^SISR ^SISR: , AT^SISW ^SISW: , ...