The information type for this call.
other E.g. for non-isdn media.
speech Speech.
unrestrictedDigital Unrestricted digital information
with 64k rate adaption.
unrestrictedDigital56 Unrestricted digital information
with 56k rate adaption.
restrictedDigital Restricted digital information.
audio31 3.1 kHz audio.
audio7 7 kHz audio.
video Video.
packetSwitched Packetswitch.
fax Fax.