DetailMissed call alert, fee: 200 kip/day.*RegisterType ON or 1 send to 666*CancelType OFF or 0 send to 666RegisterPromotionFAQsRegisterThe system will send the message to customers like below:You are using MCA (Missed Call Alert) services, using fee: 200kip⁄day, if you want to cancel this service, please type 0 send to 666, Info call 135. Thank you!PromotionFAQs 2,273 total views, 2 views todayFacebook iconFacebookTwitter iconTwitterLINE iconLine