[SR-Users] Re: Kamailio Regex

Hello,

try:

$(var(body){line.sw,Calling-party}{s.after,:}{s.trim}{uri.user})

Cheers, Daniel

On 26.05.25 12:13, Timothy Delin wrote:

Hey Daniel,

This is the expected body to be sent by the User Agent Client

/Calling-party: sip:+46761153802@telco1.com;user=phone /

/Called-party: sip:+46701234567@telco2.com;user=phone/

/ /

The goal is to extract the phone number and store it as a variable which will be used to query to Redis

Best regards,

Timothy

*From:*Daniel-Constantin Mierla miconda@gmail.com *Sent:* Monday, 26 May 2025 5:32 pm *To:* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org *Cc:* Timothy Delin timothy.delin@singtel.com *Subject:* Re: [SR-Users] Kamailio Regex

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Hello,

On 26.05.25 10:46, Timothy Delin via sr-users wrote:

Hi everyone,

 

I need your advice. I am extracting a SIP Body message from a User
Agent Client using the regex as such
*/“$var(calling_party)=
$(var(body){re.subst,/.*Calling-party:\s*sip:(\+[0-9]+)@.*/\1/});”/*

 

And I tried to log it as

*/“xlog("L_INFO", "Extracted number 1: $var(calling_party)
<><><>\n");”/*

/ /

However, the output in my logs is only showing as below, where I
cannot see any value after my variables.

“1(6) INFO: {1 10 SUBSCRIBE 5017ae21204c72a3} <script>: Extracted
number 1: +6512345678”

 

I suspect this is the reason why when I tried to use this variable
in a redis_cmd, it returns as null as the variable may have
impacted the command input to Redis.

 

I tried to change the $var(calling_party)=”+6512345678” and it is
working perfectly fine

maybe you can give and example of such body so we can try to suggest solutions. Looking at the regex and not knowing the input is not easy to guess.

Cheers, Daniel

-- Daniel-Constantin Mierla (@ asipto.com) twitter.com/miconda -- linkedin.com/in/miconda Kamailio Consultancy, Training and Development Services -- asipto.com Kamailio Scalability Training - Online, June 16-19, 2025 -- asipto.com