Hello Im Sourish, I'm a asterisk, VOIP and linux expert. I have hands on experience on voip switch, itel switch, voip routing, asterisk, DID, dialplan, SIP trunks management etc for last 3 years. I can very well satisfy your requirement. Please let me know the scope of job and the working hours in details. I am very interested to join as soon as possible and we can have a interview session over skype. Please let me know you feedback and looking forward to hear from you soon.
Regards,
Sourish