How do I find imei number in windows 8.1 phone programmatically?

Question

I am trying to find imei number in windows phone 8.1 application programmatically and i have referred many links but cannot find anything clear.I am unable to find tapi.dll for

Answer 1

Try this. It seems serious and cross platform.

Answer 2

It is possible to retrieve the IMEI using

MobileBroadbandDeviceInformation.MobileEquipmentId

For GSM devices, the MobileEquipmentId value will be the International Mobile Equipment Identitiy (IMEI), which can be up to 15 digits long. For CDMA devices, the MobileEquipmentId value must be the electronic serical number (ESNs0, which is 11 digits long, or the mobile equipment identifier (MEID), which is 17 digits long.

Note
This functionality is only available to mobile operator apps and Windows Store apps given privileged access by mobile network operators.