Tag Archive for 'callerid'

OpenSIPS: Adding CALLERID (display-name) to calls from registered users

This is about adding a display name to the calls from registered users. An analogue of Asterisk’s Set(CALLERID(name)=John Doe).

The idea was to move SIP accounts from Asterisk to OpenSIPS.

In case of using Asterisk we would configure something like:

[user222]
context=o.local
secret=4EwIWikV
callerid=Alexey Kazantsev <222>

How to achieve the same with OpenSIPS? This is the solution:

  • add desired display-names to ‘rpid’ columns of the ‘subscriber‘ table:
Adding desired callerid to ‘rpid’ column of the SIP-account.
modparam("auth_db", "load_credentials", "$avp(display)=rpid")
  • add ‘attr_avp‘ parameter to ‘registrar’ module settings:
modparam("registrar", "attr_avp", "$avp(display)")
  • and finally some magic in the script, to add the display-name to the INVITE request from the registered user, going through our OpenSIPS SBC:
# call from registered user -> add callerid
# and forward to mediaserver for call recording, etc.
if(is_registered("location"))
{
# replace only display and do not touch uri
uac_replace_from("$avp(display)","");
rewritehostport("10.145.213.63:5067");
route(relay);
}

How it looks like?

This is the INVITE coming to OpenSIPS:

2019/11/21 14:16:55.247856 10.145.213.64:5061 -> 10.145.213.63:5060
INVITE sip:111@taxsee.com SIP/2.0
Via: SIP/2.0/UDP 10.145.213.64:5061;branch=z9hG4bK-3822b894
From: <sip:222@taxsee.com>;tag=48b014547f398294o1

And this is the same INVITE leaving OpenSIPS, being modified:

2019/11/21 14:16:55.252518 10.145.213.63:5060 -> 10.145.213.63:5067
INVITE sip:111@10.145.213.63:5067 SIP/2.0
Record-Route: <sip:10.145.213.63;lr;ftag=48b014547f398294o1>
Via: SIP/2.0/UDP 10.145.213.63:5060;branch=z9hG4bK77e6.9bb3aa72.0
Via: SIP/2.0/UDP 10.145.213.64:5061;branch=z9hG4bK-3822b894
From: "Alexey Kazantsev" <sip:222@taxsee.com>;tag=48b014547f398294o1

The information stored in the ‘rpid’ column (in our example, or some custom in your architecture) is fetched to AVP at each REGISTER/save, so you do not need to reload anything to take changes in effect.

The callerid info is seen in console output via ‘opensipsctl fifo ul_dump’ command:

	AOR:: 222@taxsee.com
		Contact:: sip:222@10.145.213.64:5061 Q=
			ContactID:: 3039507536010050217
			Expires:: 42
			Callid:: 9fdd26c2-6de37105@10.145.213.64
			Cseq:: 35746
			User-agent:: Cisco/SPA303-7.6.2c
			State:: CS_NEW
			Flags:: 0
			Cflags:: 
			Socket:: udp:10.145.213.63:5060
			Methods:: 5247
			Attr:: Alexey Kazantsev

Asterisk: block inbound call by CALLERID(num) (AEL syntax)

One number :

    73522123456 =>
    {
        if(${CALLERID(num)} = 74995008119)
            {
            Hangup;
            }
        Dial(IAX2/iaxpeer/somedevice);
    }

Several numbers:

    73522123456 =>
    {
    switch (${CALLERID(num)}) {

         case 74957805170:
            NoOp(Block call from Susan);
            Hangup();
            break;

        pattern [78]4957805174:
            NoOp(Block call from Anna);
            Hangup();
            break;

        pattern [78]4957805061:
            NoOp(Block call from Lily );
            Hangup();
            break;

        pattern [78]495780508X:
            NoOp(Block call from Samantha);
            Hangup();
            break;

        default:
            Set(CDR(accountcode)=some-accountcode);
            Dial(SIP/somepeer/tomsphone01,,r);
        }
    }

pattern – here you may use constructions like [167] and/or 123X.
case – is exact sequence of symbols.

https://wiki.asterisk.org/wiki/display/AST/AEL+Conditionals