(www.btcl.com.bd) www.btcl.com.bd http://btcl.teletalk.com.bd X X (User_ID) User_ID User_ID Teletalk pre-paid mobile SMS Ist SMS Format : BTCLR<Space>User_ID & send to 16222. PIN PIN 2nd SMS Format : BTCLR<Space>YES<Space>PIN & send to 16222. Application Form