====== adv.dialDTMF ======
wrtc.adv.dialDTMF is a string object containing DTMF sequence to transmit after call has been established.

Please see description of [[ixnx:wrtc:js:api:call:senddtmf|call.sendDTMF()]] for list of valid contents, browser support, etc.

===== Value =====
String containing DTMF sequence to send.

===== Default value =====
undefined

===== Usage =====
Set wrtc.adv.dialDTMF before calling [[ixnx:wrtc:js:api:wrtc:call|wrtc.call()]].

If you call [[ixnx:wrtc:js:api:wrtc:geturlvars|wrtc.getURLvars()]] in [[ixnx:wrtc:js:api:wrtc:init|wrtc.init()]] wrtc.adv.dialDTMF will be set to supplied URL tag "dtmf=", if any.

===== Example =====
By setting [[ixnx:wrtc:js:api:wrtc:adv.callto|wrtc.adv.callTo]] and wrtc.adv.dialDTMF in wrtc.init() you can make the webpage automatically call an address and enter accesscode:\\
wrtc.init = function() {\\
…\\
wrtc.adv.callTo=“gateway@foo.com”;\\
wrtc.adv.dialDTMF="1234"; / / access code to gateway@foo.com\\
…\\
};