Page 525 - Asterisk™: The Future of Telephony

See Also
CHANNEL()

CHANNEL Gets or sets various channel parameters
CHANNEL(item)

Standard items (provided by all channel technologies) are:

audioreadformat
Read-only. Format currently being read.
audionativeformat
Read-only. Format used natively for audio.

videonativeformat
Read-only. Format used natively for video.
audiowriteformat
Read-only. Format currently being written.
callgroup
Read/write. Callgroups for call pickup.
channeltype
Read-only. Technology used for channel.
language
Read/write. Language used for sounds played and recorded.
musicclass
Read/write. Class used (from musiconhold.conf) for hold music.
rxgain
Read/write. Receive gain (in dB) on channel drivers that support it.

txgain
Read/write. Transmit gain (in dB) on channel drivers that support it.
tonezone
Read/write. Regional zone for indications played.
state
Read-only. Current channel state.
transfercapability
Read/write. What can be transferred on an ISDN circuit. Current valid values are:
SPEECH
Speech (default, voice calls)
DIGITAL
Unrestricted digital information (data calls)

CHANNEL | 497