1- From PSTN dail asterisk Free No
2- From IVR menu press 5 ( i configured this ) refer me to DISA script.
3- Enter DISA Pass
4- I can make a call when i press 9 and Number or make a VOIP call when i press 5.
${PASSCODE} is “read” from the caller at priority 5, and ${DISA_PASSCODE} is a global variable that is set in the [general] section of extensions.conf.
we do a simple comparison and proceed accordingly.