Hello, I remember from a past project that we also had some inter-op problems related to some specific AVPs in the Ro interface generated from Kamailio.
As it was a custom installation for a POC, we just removed the code supporting it. It would be probably a good idea to add some logic to the module that allows to specify the AVPs that are included in the message. One way would be with a configuration switches, or with a mode parameter that supports an integer map value (probably more flexible way). Cheers, Henning -- Henning Westerholt - https://skalatan.de/blog/ Kamailio services - https://gilawa.com > -----Original Message----- > From: [email protected] <[email protected]> > Sent: Dienstag, 5. September 2023 16:54 > To: [email protected] > Subject: [SR-Users] Unnecessary/Invalid AVPs in CCR message over Ro > Interface > > **Issue Description** > > I'm encountering an issue with my Kamailio configuration related to the > inclusion of the "Accounting-Record-Type" (480) and "Accounting-Record- > Number" (485) AVPs in Credit-Control Request (CCR) messages sent from the > S-CSCF to the OCS. > > **Issue Details** > > - **Problem**: The "Accounting-Record-Type" and "Accounting-Record- > Number" AVPs are being added to CCR messages generated by my Kamailio > instance. > - **Expected Behavior**: According to modern Diameter and 3GPP standards > (e.g., RFC 4006 and TS 32.299), these AVPs should not be included in CCR > messages. > > **Configuration Details** > > - **Kamailio Version**: 5.3.0 > - **SigScale OCS Version**: 3.2.9 > > > Note that I have redacted some specific information for confidentiality > reasons. The actual values are placed in my Kamailio main configuration file > (`kamailio.cfg`) and Diameter-specific configuration files (where applicable). > > Kamailio.cfg: > modparam("ims_charging", "db_url", DB_URL) modparam("ims_charging", > "db_mode", 1) modparam("ims_charging", "origin_host", HOSTNAME); > modparam("ims_charging", "origin_realm", NETWORKNAME); > modparam("ims_charging", "destination_host", DESTINATION_HOST); > modparam("ims_charging", "destination_realm", DESTINATION_REALM); > modparam("ims_charging","service_context_id_root", RO_ROOT); > modparam("ims_charging","service_context_id_ext", RO_EXT); > modparam("ims_charging","service_context_id_mnc", MNC); > modparam("ims_charging","service_context_id_mcc", MCC); > modparam("ims_charging","interim_update_credits",30); > modparam("ims_charging","timer_buffer",5); > > SCSCF.xml: > <?xml version="1.0" encoding="UTF-8"?> > <DiameterPeer > FQDN="scscf.mncXXX.mccXXX.3gppnetwork.org" > Realm="ims.mncXXX.mccXXX.3gppnetwork.org" > Vendor_Id="10415" > Product_Name="CDiameterPeer" > AcceptUnknownPeers="1" > DropUnknownOnDisconnect="1" > Tc="30" > Workers="16" > QueueLength="32" > TransactionTimeout="5" > SessionsHashSize="128" > DefaultAuthSessionTimeout="3600" > MaxAuthSessionTimeout="3600" > > > > <Peer FQDN="diameter" Realm="ims.mncXXX.mccXXX.3gppnetwork.org" > port="3868"/> > <Peer FQDN="192.168.2.31" > Realm="ocs.ims.mncXXX.mccXXX.3gppnetwork.org" port="3868"/> > <Acceptor port="3868" bind="eth0"/> > > <Auth id="16777216" vendor="10415"/><!-- 3GPP Cx --> > <Auth id="16777216" vendor="4491"/><!-- CableLabs Cx --> > <Auth id="16777216" vendor="13019"/><!-- ETSI/TISPAN Cx --> > <Auth id="16777216" vendor="0"/><!-- ETSI/TISPAN Cx --> > > <Auth id="4" vendor="10415"/> <!--3GPP Ro --> > <Acct id="4" vendor="10415" /> > > <!-- > Supported Vendor IDs - list of values which will be sent in the CER/CEA > in the > Supported-Vendor-ID AVPs > --> > <SupportedVendor vendor="10415" /> > <Realm name="ocs.ims.mncXXX.mccXXX.3gppnetwork.org"> > <Route FQDN="192.168.2.31" metric="10"/> > </Realm> > <DefaultRoute FQDN="diameter" metric="10"/> </DiameterPeer> > > I am using SigScale OCS as my Online Charging System. Here is the error log I > received from SigScale OCS: > ERROR REPORT==== 5-Sep-2023::07:27:01.393554 === "DIAMETER AVP > unsupported" > service_name: {ocs_diameter_acct_service,{0,0,0,0},3868} > capabilities: {diameter_caps, > {<<"host1">>, <<"scscf-1.ims.mncXXX.mccXXX.3gppnetwork.org">>}, > {<<"COMPANYNAME.local">>, > <<"ims.mncXXX.mccXXX.3gppnetwork.org">>}, > {[{0,0,0,0}],[{172,18,0,7}]}, > {50386,10415}, > {<<"SigScale OCS">>,<<"CDiameterPeer">>}, > {[],[]}, > {[10415],[10415]}, > {[4,16777238],[16777216]}, > {[],[]}, > {[],[]}, > {[{'diameter_base_Vendor-Specific-Application- > Id',10415,[16777238],[]}], > [{'diameter_base_Vendor-Specific-Application- > Id',10415,[16777216],[]}, > {'diameter_base_Vendor-Specific-Application- > Id',4491,[16777216],[]}, > {'diameter_base_Vendor-Specific-Application- > Id',13019,[16777216],[]}, > {'diameter_base_Vendor-Specific-Application-Id',10415,[4],[]}, > > {'diameter_base_Vendor-Specific-Application-Id',10415,[],[4]}]}, > {[329],[]}, > {[],[]}} > errors: [{5001, > {diameter_avp,480,undefined,true,false, > <<0,0,0,2>>, > 'Accounting-Record-Type',2,'Enumerated',5}}, > {5001, > {diameter_avp,485,undefined,true,false, > <<0,0,0,0>>, > 'Accounting-Record-Number',0,'Unsigned32',6}}, > {5001, > {diameter_avp,260,undefined,true,false, > <<0,0,1,10,64,0,0,12,0,0,40,175,0,0,1,2,64,0,0,12,0,0,0,4>>, > 'Vendor-Specific-Application-Id', > {'3gpp_ro_Vendor-Specific-Application-Id',10415,[4],[]}, > 'Grouped',10}}] > > > > I would greatly appreciate it if someone from the community could provide > insights into the following: > > 1. Possible Configurations: Are there specific configurations or modules in > Kamailio that might cause the inclusion of non-standard AVPs in CCR > messages? > > 2. IMS Ro Interface Behavior: Does anyone have experience with IMS Ro > interface behavior using Kamailio that could shed light on this? > > If you have any guidance, suggestions, or solutions to help me troubleshoot > and resolve this problem, please share them. Thank you for your assistance. > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe > send an email to [email protected] > Important: keep the mailing list in the recipients, do not reply only to the > sender! > Edit mailing list options or unsubscribe: __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to [email protected] Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
