Kamailio Bytes – OnReply Route
Nick So far with most of our discussions about Kamailio we’ve talked about routing the initial SIP request (INVITE, REGISTER, SUBSCRIBE, etc), but SIP is not a one-message protocol, there’s a…
2021
Telecom Pillars – Resistance to Rifle Fire?
A research paper from the 1960s examining how Telecommunications pillars hold up to gunfire...
Enable GPS/GLONASS Sync on Huawei BTS3900
Our BTS is going to need an accurate clock source in order to run, so without access to crazy accurate Timing over Packet systems or TDM links to use as…
SIM / Smart Card Deep Dive – Part 3 – APDUs and Hello Card
A look at APDUs and Interacting with Cards
SIM / Smart Card Deep Dive – Part 2 – Meet & Greet
The basics of Smart Cards & their File System