成员的完整列表，这些成员属于 com.hyphenate.chat.EMCallSession.EndReason,包括所有继承而来的类成员

BUSY (定义于 com.hyphenate.chat.EMCallSession.EndReason)	com.hyphenate.chat.EMCallSession.EndReason
EndReason(int value) (定义于 com.hyphenate.chat.EMCallSession.EndReason)	com.hyphenate.chat.EMCallSession.EndReason
FAIL (定义于 com.hyphenate.chat.EMCallSession.EndReason)	com.hyphenate.chat.EMCallSession.EndReason
getValue() (定义于 com.hyphenate.chat.EMCallSession.EndReason)	com.hyphenate.chat.EMCallSession.EndReason
HANGUP (定义于 com.hyphenate.chat.EMCallSession.EndReason)	com.hyphenate.chat.EMCallSession.EndReason
NORESPONSE (定义于 com.hyphenate.chat.EMCallSession.EndReason)	com.hyphenate.chat.EMCallSession.EndReason
OFFLINE (定义于 com.hyphenate.chat.EMCallSession.EndReason)	com.hyphenate.chat.EMCallSession.EndReason
REJECT (定义于 com.hyphenate.chat.EMCallSession.EndReason)	com.hyphenate.chat.EMCallSession.EndReason
SERVICE_ARREARAGES (定义于 com.hyphenate.chat.EMCallSession.EndReason)	com.hyphenate.chat.EMCallSession.EndReason
SERVICE_FORBIDDEN (定义于 com.hyphenate.chat.EMCallSession.EndReason)	com.hyphenate.chat.EMCallSession.EndReason
SERVICE_NOT_ENABLE (定义于 com.hyphenate.chat.EMCallSession.EndReason)	com.hyphenate.chat.EMCallSession.EndReason