Hi sir , how you doin ? i am a voip expert working with many voip plateforms , my expertise is on Asterisk , FreePBX, A2billing , VoipSwitch , VSPortal , VSService and many voip plateforms , i worked for many VOIP operators and wholsale porviders , i am managing my own business and searching for opportunities , i installed more then 35 dialers arround the world i am sip trunks providers with cheap rates ,
i have installed and manged many PBX , we can talk anytime and configure your A2billing
my skype is MrDevelopper
Best regards