1. gateway dialplan is:
2.  
3. <extension name="mytelco">
4.         <condition field="destination_number" expression="^987(\d+)$">
5.             <action application="set" data="effective_caller_id_number=46xxxxxxxx"/>
6.             <param name="caller-id-in-from" value="true"/>
7.             <action application="set" data="record_link=${strftime(%Y-%m-%d-%H-%M-%S)}_${destination_number}_${caller_id_number}.wav"/>
8.             <action application="record_session" data="/var/www/html/freeswitch/recordings/${record_link}"/>
9.             <action application="lua" data="/etc/freeswitch/scripts/beep_detection-from-call-v0.1.2.lua $1 ${record_link}"/>
10.             <action application="hangup"/>
11.         </condition>
12.     </extension>
13.    
14.    
15.    
16. file beep_detection-from-call-v0.1.2.lua
17.  
18. #!/usr/local/bin/lua
19.  
20. DNID = argv[1]
21.  
22. if session:ready() then
23.    session:sleep(1000)
24.    session:execute("avmd_start", "inbound_channel=1,outbound_channel=0,sample_n_continuous_streak=10,sample_n_to_skip=0,debug=1,report_status=1")
25.  
26.     session:execute("bridge", "{execute_on_answer=lua /etc/freeswitch/scripts/on_answer-v0.3.lua " .. uuid .. "}sofia/gateway/mytelco/" .. DNID)
27.  
28.     session:execute("avmd_stop","")
29.  
30. end --if
31.  
32.  
33.  
34. file on_answer-v0.3.lua
35.  
36. #!/usr/bin/lua
37.  
38. uuid_original = argv[1]
39.  
40. api = freeswitch.API()
41.  
42. reply = api:executeString("bgapi uuid_broadcast " .. uuid_original .. " /usr/share/asterisk/sounds/en/dennis-ivan.gsm both")
43.  
44. freeswitch.consoleLog("INFO","==============================================")
45. freeswitch.consoleLog("INFO","API reply is:" .. reply)
46. freeswitch.consoleLog("INFO","==============================================")