Using www.twilio.com you can now verify your users. They will charge $1.00 for a phone number and average calls are 2 cents. So if you verify 50 users in a month it will cost you a whole 2 bucks. Affordable and peace of mind. VOICE and SMS verified and MULTI LANGAUGE.
1) Multi langauges
2) Responsive designed
3) Display Icon when user is or not verified in listings.