Its a full-time job on site location in Ahmedabad.
Salary will be as per candidate's experience and skill.
These requirements for VOIP Industry :
1) Asterisk Developer (with voice support)
2) Developer in Vicidial and Elastix call center setup
3) PHP Developer with Voip System Setup
If anyone interested then send me CV on : firstname.lastname@example.org
Thanks & Best Of Luck