VDA Pro 对比 OperrTel 的使用情况和统计数据

The Operrtel App is a business phone service app that enables complete mobility for Operrtel customers. Stay connected when you're away from your office phone, or replace your desk phone altogether when you utilize voice, instant messaging, and presence services from your mobile device. It's like carrying your office in the palm of your hand. Please check our Terms & Conditions: https://www.operrtel.com/terms-of-service.html Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/