// ksmedia.h

typedef enum {
  TELEPHONY_CALLTYPE_CIRCUITSWITCHED,
  TELEPHONY_CALLTYPE_PACKETSWITCHED_LTE,
  TELEPHONY_CALLTYPE_PACKETSWITCHED_WLAN
} TELEPHONY_CALLTYPE;
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Windows Driver Kit DDI reference (ne-ksmedia-telephony_calltype)

TELEPHONY_CALLTYPE enumeration

Description

The TELEPHONY_CALLTYPE enumeration defines constants that specify the type of phone call.

Constants

`TELEPHONY_CALLTYPE_CIRCUITSWITCHED`

Specifies a circuit-switched phone call.

`TELEPHONY_CALLTYPE_PACKETSWITCHED_LTE`

Specifies a packet-switched Long-Term Evolution (LTE) phone call.

`TELEPHONY_CALLTYPE_PACKETSWITCHED_WLAN`

Specifies a packet-switched wireless LAN (WLAN) phone call.

TELEPHONY_CALLTYPE - NtDoc