[..]
- ZSD_INBOUND
- ZSD_OUTBOUND
- ZSM_ACCEPTABLE
- ZSM_NONE
- ZSM_UNACCEPTABLE
- ZT_ABIT
- ZT_AUDIOMODE
- ZT_BBIT
- ZT_CBIT
- ZT_CHANCONFIG
- ZT_CODE
- ZT_CONFDIAG
- ZT_CONFLINK
- ZT_DBIT
- ZT_DEFAULT_MTU_MRU
- ZT_ECHOCANCEL
- ZT_ECHOTRAIN
- ZT_EVENT_ABORT
- ZT_EVENT_ALARM
- ZT_EVENT_BADFCS
- ZT_EVENT_BITSCHANGED
- ZT_EVENT_DIALCOMPLETE
- ZT_EVENT_HOOKCOMPLETE
- ZT_EVENT_NOALARM
- ZT_EVENT_NONE
- ZT_EVENT_ONHOOK
- ZT_EVENT_OVERRUN
- ZT_EVENT_POLARITY
- ZT_EVENT_PULSE_START
- ZT_EVENT_RINGBEGIN
- ZT_EVENT_RINGEROFF
- ZT_EVENT_RINGERON
- ZT_EVENT_RINGOFFHOOK
- ZT_EVENT_TIMER_EXPIRED
- ZT_EVENT_TIMER_PING
- ZT_EVENT_WINKFLASH
- ZT_FLASH
- ZT_FLUSH
- ZT_FLUSH_ALL
- ZT_FLUSH_BOTH
- ZT_FLUSH_EVENT
- ZT_FLUSH_READ
- ZT_FLUSH_WRITE
- ZT_G711_ALAW
- ZT_G711_DEFAULT
- ZT_G711_MULAW
- ZT_GETCONF
- ZT_GETCONFMUTE
- ZT_GETEVENT
- ZT_GETGAINS
- ZT_GETRXBITS
- ZT_GET_BLOCKSIZE
- ZT_GET_BUFINFO
- ZT_GET_PARAMS
- ZT_HDLCFCSMODE
- ZT_HDLCRAWMODE
- ZT_HOOK
- ZT_INVALID_SOCKET
- ZT_IOMUX
- ZT_IOMUX_NOWAIT
- ZT_IOMUX_READ
- ZT_IOMUX_SIGEVENT
- ZT_IOMUX_WRITE
- ZT_IOMUX_WRITEEMPTY
- ZT_MAINT
- ZT_MAINT_LOCALLOOP
- ZT_MAINT_LOOPDOWN
- ZT_MAINT_LOOPSTOP
- ZT_MAINT_LOOPUP
- ZT_MAINT_NONE
- ZT_MAINT_REMOTELOOP
- ZT_MAX_BLOCKSIZE
- ZT_OFFHOOK
- ZT_ONHOOK
- ZT_RING
- ZT_RINGOFF
- ZT_SETCONF
- ZT_SETGAINS
- ZT_SETLAW
- ZT_SETLINEAR
- ZT_SETTXBITS
- ZT_SET_BLOCKSIZE
- ZT_SET_BUFINFO
- ZT_SET_PARAMS
- ZT_SIG_CAS
- ZT_SIG_CLEAR
- ZT_SIG_EM
- ZT_SIG_FXOGS
- ZT_SIG_FXOKS
- ZT_SIG_FXOLS
- ZT_SIG_FXSGS
- ZT_SIG_FXSKS
- ZT_SIG_FXSLS
- ZT_SIG_HARDHDLC
- ZT_SIG_HDLCFCS
- ZT_SIG_HDLCRAW
- ZT_SIG_NONE
- ZT_SPANCONFIG
- ZT_SPANSTAT
- ZT_SPECIFY
- ZT_START
- ZT_SYNC
- ZT_WINK
[..]