Twilio is the most reliable global messaging platform and it can connect with most popular VoiP systems. It's also has affordable local number in most countries and cheap outbound and inbound calls/messages rate. Their support is superb. The platform dashboard is easy to navigate for users with tech background.

My team uses Twilio daily as it's integrated with our GHL CRM, and 3CX. Review collected by and hosted on G2.com.

Twilio is a developer's dream because of its flexible APIs and global reach, Its easy to scale our messaging. However, the technical setup is little demanding, and the pay-as-you-go costs spiked unexpectedly as our contacts and sales call grew. It’s powerful if you have the coding talent, but the slow customer support and complex compliance hurdles can be a major headache. Review collected by and hosted on G2.com.