This service enables customers to make a call via Internet for cost-efficient communications both within Thailand and beyond. UIH’s Voice service has three categories

1. UIH Voice  With this solution, customers can make calls between their branches without paying the charge of a long-distance call. However, it is not compatible with landline phones and mobile phones.

2. UIH Voice Fixed Line – Lite With this solution, customers can make calls to landline phones, mobile phones, and an overseas destination at a low cost.

3. UIH Voice Fixed Line UIH gets landline-phone numbers for customers so that they can connect with other landline phones, mobile phones and people overseas at a cost lower than operators’ normal call charges. With these landline-phone numbers, customers can also receive calls