This code system http://hl7.org/fhir/v2/0483 defines the following codes:

CodeDisplay
ELElectronic
EME-mail
FXFax
IPIn Person
MAMail
PAPaper
PHPhone
REReflexive (Automated system)
VCVideo-conference
VOVoice

Additional Language Displays

Codenl
ELElectronisch
EME-mail
FXFax
IPIn persoon
MAPost
PAPapier
PHTelefoon
REReflexief (geautomatiseerd systeem)
VCVideoconferentie
VOStem