Category: Asterisk

This is a snippet developed by a colleague of mine. This is for people who’s supplier’s doesn’t allow passing original Caller ID for forwarded calls. What this does is it will show the DID where the calling party called in as the caller ID instead of showing up your default trunk number for the caller ID.

First add the below code to extensions_override_freepbx.conf, next restart/reload asterisk and you’re good to go.

[macro-outbound-callerid]
include => macro-outbound-callerid-custom
exten => s,1,ExecIf($["${CHANNEL(channeltype)}" = "Local"]?Set(CALLERID(all)=${MASTER_CHANNEL(DEXTEN)}))
exten => s,n,ExecIf($["${CHANNEL(channeltype)}" = "Local"]?Set(AMPUSER=${MASTER_CHANNEL(DEXTEN)}))
exten => s,n,ExecIf($["${CALLINGNAMEPRES_SV}" != ""]?Set(CALLERPRES(name-pres)=${CALLINGNAMEPRES_SV}))
exten => s,n,ExecIf($["${CALLINGNUMPRES_SV}" != ""]?Set(CALLERPRES(num-pres)=${CALLINGNUMPRES_SV}))
exten => s,n,ExecIf($["${REALCALLERIDNUM:1:2}" = ""]?Set(REALCALLERIDNUM=${CALLERID(number)}))
exten => s,n(start),GotoIf($[ $["${REALCALLERIDNUM}" = ""] | $["${KEEPCID}" != "TRUE"] | $["${OUTKEEPCID_${ARG1}}" = "on"] ]?normcid)
exten => s,n,Set(USEROUTCID=${REALCALLERIDNUM})
exten => s,n,GotoIf($["foo${DB(AMPUSER/${REALCALLERIDNUM}/device)}" = "foo"]?bypass)
exten => s,n(normcid),Set(USEROUTCID=${DB(AMPUSER/${AMPUSER}/outboundcid)})
exten => s,n(bypass),Set(EMERGENCYCID=${DB(DEVICE/${REALCALLERIDNUM}/emergency_cid)})
exten => s,n,Set(TRUNKOUTCID=${OUTCID_${ARG1}})
exten => s,n,GotoIf($["${EMERGENCYROUTE:1:2}" = "" | "${EMERGENCYCID:1:2}" = ""]?trunkcid)
exten => s,n,Set(CALLERID(all)=${EMERGENCYCID})
exten => s,n,Set(CDR(outbound_cnum)=${CALLERID(num)})
exten => s,n,Set(CDR(outbound_cnam)=${CALLERID(name)})
exten => s,n(exit),MacroExit()
exten => s,n(trunkcid),ExecIf($[${LEN(${TRUNKOUTCID})} != 0]?Set(CALLERID(all)=${TRUNKOUTCID}))
exten => s,n(usercid),ExecIf($[${LEN(${USEROUTCID})} != 0]?Set(CALLERID(all)=${USEROUTCID}))
exten => s,n,ExecIf($[${LEN(${TRUNKCIDOVERRIDE})} != 0 | ${LEN(${FORCEDOUTCID_${ARG1}})} != 0]?Set(CALLERID(all)=${IF($[${LEN(${FORCEDOUTCID_${ARG1}})}=0]?${TRUNKCIDOVERRIDE}:${FORCEDOUTCID_${ARG1}})}))
exten => s,n(hidecid),ExecIf($["${CALLERID(name)}"="hidden"]?Set(CALLERPRES(name-pres)=prohib_passed_screen))
exten => s,n,ExecIf($["${CALLERID(name)}"="hidden"]?Set(CALLERPRES(num-pres)=prohib_passed_screen))
exten => s,n,Set(CDR(outbound_cnum)=${CALLERID(num)})
exten => s,n,Set(CDR(outbound_cnam)=${CALLERID(name)})

You may have a scenario where you’ve a particular extension assigned to a special service and you want only a select group of people/extensions to be able to make calls to this extension.

This can be easily achieved with the dial plan below. There’s just one file to edit : extensions_custom.conf

[kick]
exten => _X.,1,Playback(invalid)
exten => _X.,n,Hangup

[from-internal-custom]
exten => 7572/7520,1,Answer()
exten => 7572/7507,1,Answer()
exten => 7572/7584,1,Answer()
exten => 7572/4914,1,Answer()
exten => 7572/7500,1,Answer()
exten => 7572/_XXXX,1,Goto(kick,${EXTEN},1)
exten => 7572/_X.,1,Answer()

Let’s analyse what’s happening here.

The first section [kick] tells Asterisk to play a message saying the dialed destination is invalid and then to hang up.

The next section [from-internal-custom] defines what extension can connect/dial to this particular extension (in this example ext 7572 is the one needing incoming restrictions).
The part before the “/” defines the destination extension and the part after the “/” defines the source extensions.
So in this scenario extensions 7500, 7507, 7520, 7584 and 4914 will be able to call 7572. All other 4 digit extensions will be sent to [kick] which will terminate their calls.

The last part will allow any other call to be picked up by the extension (for example, an external call).

Original idea from : source

Create batch file with below and run the script. It will list down the Useragent, Contact & Username.

asterisk -rx “sip show peers” | cut -f1 -d/ | grep -P ‘\d\d\d\d’ | grep -vP ‘(UNKNOWN|Unmonitored)’ |
while read PEER
do
asterisk -rx “sip show peer ${PEER}” |
grep -P “(Useragent|Contact|Username)”
echo “====”
done