You are downloading the Callback - Flextel XAP file v1.0.0.0 for Windows Phone. Callback - Flextel is a free Business App: The Flextel Callback application lets you make calls at low Flextel rates using our amazing Callback service from your mobile, without the instability of VoIP. You can now download the offline XAP package file to install & try it.
Download Locations for Callback - Flextel 1.0.0.0 XAP file
Package File
Please Click Here > to retrieve available package files for Callback - Flextel.
Please be aware that the Callback - Flextel XAP file you are to download is hosted on the Microsoft Store CDN server. You can read more about Callback - Flextel or get it on Microsoft Store.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Callback - Flextel XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.