Text to speech for Asterisk written in go (re-implementation of http://zaf.github.io/asterisk-googletts/ )
Used in https://github.com/mcilley/asterisk-zabbix-phone-escalation
ex. playing back a greeting when recieving a call by calling out compiled binary placed in agi scripts directory
exten => s,n,agi(gtts.agi,"Hello, this is a test message!")