CALLING SIGNATURE

Calling Signature - Isign allows users create new content and share it on their friends’ phone screen while they receive a call from or make a call to you on the Viettel network. Isign has brought high achievements, bringing many benefits to users. Only once registering, users can freely change the signature to suit their purposes. The service also often has promotions with attractive prizes for customers.

+ Website: isignplus.vn

+ Facebook: https://www.facebook.com/chukycuocgoiisignplus

+ Tiktok: Isign.viettel  

+ Hotline: 024. 6653. 4862