Using ic880a with bandwidth 865 to 867

hello,
i am using ic880a with rasperrypi i have registered my gateway with things network and sent my sensor data to server using the bandwidth 868 now i want to change my bandiwth to 865 to 867 indian region
1)does ic880a supports for bandwidth 865 to 868
2)if yes means what are the changes i should do to change my gateway to 868 to 866
thanks and regards
manikandan v