Page 526 - Asterisk™: The Future of Telephony

RESTRICTED_DIGITAL
Restricted digital information
3K1AUDIO
3.1 kHz Audio (fax calls)
DIGITAL_W_TONES
Unrestricted digital information with tones/announcements
VIDEO
Video
Additional items may be available from the channel driver providing the channel; see
its documentation for details. Any item requested that is not available on the current
channel will return an empty string.

See Also
CDR()

CHECK_MD5 Validate an MD5 digest
CHECK_MD5(digest,data)

Returns 1 on success, 0 on failure.
This function is deprecated in favor of using the MD5() function with the built-in ex-
pression parser.
See Also

MD5()

CHECKSIPDOMAIN Checks if a domain is local
CHECKSIPDOMAIN(domain|IP)

This function checks if the domain in the argument is configured as a local SIP domain
that this Asterisk server is configured to handle. Returns the domain name if it is locally
handled, otherwise an empty string. Check the domain configuration option in sip.conf.

CURL Returns the data resulting from a GET or POST to a URI
CURL(url[|post-data])

By default, CURL() will perform an HTTP GET to retrieve the url. However, if post-
data is specified, an HTTP POST will be performed instead.

498 | Appendix E: Asterisk Dialplan Functions