Penetration Testing of a Telco Company [CORE]

Over the past few years/months... Theres been a lot of chatter about penetration testing and security of telecommunication companies, however the biggest hinderance to this has however been, well you guessed it, access:

from, tools, resources, money and well knowledge.

As a step to help out on the community, I will be releasing some of the materials to familiarize the intended audience (student, lectures, humans and fellow security enthusiasts) from this basically knowledge and tools.

We will be looking at security in telcos now not only in the Air & Abis layer but also the protocols, and the infrastructure, the core networks so :

SS7
Diameter
GGSN
GRX
HLR&VLR

we are coming for you: :) , I will also start this in a point of explaining how telcos work and the heavy accronyms behind them, then after we will dive into setting up some test/lab facilities, then move on to the security side of them, the 4-6 part series will be broken down so everyone can chime in :) feel free to engage.