Hi,
I found your job post on Freelancer project feed page and I am very interested in this particular project. I have gone through the description and I understand your requirement very well. I have a good knowledge and experience of voip technology and have setup various PBX, IVR, VM, Dialer and softphone systems in past. I am sure that you will find all skills in me that you are looking for.
I will be available for an interview till 06:30 PM EST. Otherwise, you may propose some other time that you are more comfortable with.
Regards
Vikas