Updated documentation for managing D150 transcoding cards
Adding USB-C Power Delivery charging to an old ThinkPad
A simple trick to find all the system paths used in FreeSWITCH
In our last few posts we got CGrateS setup in order to have rates and tariffs in the system, so we can price a call. Where we ended we were able to use the APIerSv1.GetCost method to get the cost of a call, and today, we’re going to actually create some rated CDRs. So again […]
Using Android’s development features to allow remote control of a UE in the field for testing the cellular network.
Finally rating a call end-to-end with CGrates!
CGRates in Baby Steps – Part 2 – Introduction to the CGrates API
Linking FreeSWITCH and CGrates for realtime credit control and billing
Recently I had a strange issue I thought I’d share. Using Kamailio as an Interrogating-CSCF, Kamailio was getting the S-CSCF details from the User-Authorization-Answer’s “Server-Name” (602) AVP. The value was set to: sip:scscf.mnc001.mcc001.3gppnetwork.org:5060 But the I-CSCF was only looking up A-Records for scscf.mnc001.mcc001.3gppnetwork.org, not using DNS-SRV. The problem? The Server-Name I had configured as a […]
Extracting SDP Parameters with Kamailio
If you’ve ever received an SMS from your operator, and the sender was the Operator name for example, you may be left wondering how it’s done. In IMS you’d think this could be quite simple – You’d set the From header to be the name rather than the MSISDN, but for most SMSoIP deployments, the […]
Using Python3 inside the FreeSWITCH Dialplan
A new tool I’ve written to stream packets from one machine to another for analysis in real time.
Ubuntu 20.04 repos have a fairly outdated release of Wireshark, and the other day when trying to open a packet capture I got the below error: After doing an apt-get update && apt-get upgrade wireshark, the version of Wireshark, and the issue remained. I have compiled Wireshark from source before, but it’s a real headache, […]
A quick look at a possible cause for “INCOMPATIBLE DESTINATION” errors in FreeSWITCH.
A quick post on a lesson that took me a while to learn with DNS, Kamailio and IMS.
Bad Extension is nothing to do with the Dialplan…
Getting started with CGrateS to bill for calls in a Telecom environment.
A deep dive into Mobile Originated MMS via the MM1 Interface