At OneRing, we provide missed call to verify service. With OneRing Miss Call service, you can verify the authenticity of the prospects and existing customers at various stages. Not only just customers but you can also check the authenticity of the devices associated with your customers. Through OneRing, you can make the procedure simple and better. You can ask the customers to leave a miss call on the unique toll free number provided by you to verify their mobile number. For more info, Talk to our expert on 9099041488 or 9638811609.