Dialplan > General Settings, “Set Dialplan variables”
DEBUG_LUA – writes dialplan logs to file /tmp/calls/call-<caller>-<callee>-<date of start call>-<uniqid>.log. Set this value to file or all for activation described logs.
FAXDEBUG – enable debug messages for applications SendFax or ReceiveFax. Supported values: yes – enable this feature, no (default) – disable this feature.
DIALNOINSTR – disable message in preanswer services. Supported values: yes – enable this feature, no (default) – disable this feature.
CALLCOMPLETION – CallCompletion feature in preanswer service. Set to yes (default) – enable this feature, no – for disable.
RETURNFROMTRANSFER – Return from Transfer feature. Set to yes (default) – enable this feature, no – disable feature.
EXTENDED_DEVSTATE – processing device state in case call to/from mobility/office phone (used to enable callwaiting, second mobility call). Values: yes – enable this behavior, no (default) – disable.
GATTACH_LIMIT – set max attachment file size in MB (used for email attachments with mp3 file).
RECORDING_EMAIL – email address to receive a copy of all recordings (file is attached even if related options in General Dialplan settings are disabled).
FAX_MACHINE_ID – set fax machine ID (if not set in user preferences) for fax sending by user.
FAX_HEADER – set fax header (if not set in user preferences) for fax sending by user.
DISABLE_FORWARD_NOTIFICATION – disable audio forward notification. Supported values: yes – enable this feature, no (default) – disable.
PIN_LENGTH – set the min number of digits in password PIN check. Supported values: more than 3 (if less than 3, anyway 3 digits are required). Default value – 5.
EXTNUMBERINFO – enable/disable printing to dialplan logs information about external number, like number type, country, etc. Supported values: yes or no (default)
HIDE_DTMF=yes – disables visualization of DTMFs on WP display; supported parameters yes/no (by DTMFs are displayed by default)
VOICEMAIL_DELETE=X – auto deletion of Voicemails after X days