Deutsche Telekom VVM free SMS shortcodes DE

The Deutsche Telekom “Mobilbox Pro” App (Visual Voicemail) uses SMS for
provision, these SMSs are free to the user, so the premium SMS notification
creates confusion. To avoid this notification, DTAG has harmonized two
short codes in Germany, 81214 and 81215, which are free in all German mobile
networks and should be whitelisted. Once whitelisted, these 2 codes will be
used by the client.

Change-Id: Id981b1d7abf83c2dc4a5846aa8a40b37e2e12409
Signed-off-by: Marcus Mueller-Jung <marcus.mueller-jung@telekom.de>