@lamishowtips: Learn how to register and unsubscribe Ethio telecom CRBT (Caller Ring Back Tone) services using SMS codes. In this video, I show the two types of CRBT: Normal CRBT and Calling CRBT, including activation and deactivation codes through 822 SMS. � Ethiotelecom Codes shown in the video: 🎵 Normal CRBT ✅ Register: Send A to 822 ❌ Unsubscribe: Send U to 822 🎵 Calling CRBT ✅ Register: Send A1 to 822 ❌ Unsubscribe: Send U1 to 822 Ethiotelecom Ethio telecom CRBT, CRBT registration, CRBT unsubscribe, SMS 822, Ethio telecom codes, Ethiopia technology tips #EthioTelecom #CRBT #EthiopiaTech #PhoneTips #ethiotelcomcodes