Hello,
I'm experienced VXML developer and have experience with VoIP more than 7 years. Supporting and developing complex IVRs is my profession and main job.
I'm new here on freelancer.com, but I work a lot with other sites such as Elance. So if you need recommendations or my previous feedback, I have it.
May you give more details about your needs?
Feel free to ask me any questions.
I will await your response.