Les types d'APN sous Android:

default any type for which no APN entry is defined
mms Multimedia Messaging Service
supl Secure User Plane Location, geographic device location
dun Dial Up Networking bridge
hipri High Priority Mobile data
ims IP Multimedia Subsystem
fota Over the air Adminstration
cbs Carrier Branded Services
* all types of traffic (literal asterisk string)

Si un tethering ne fonctionne pas, ajouter le type dun
Explications verbeuse