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Errrrr, if its a serious question. Then I:
am a Network performance Engineer (Radio Access, mostly, but some Core on the CS side...Voice): Ascertaining network degradation at National/Regional/NE level, such as NB/BTS/Cell identifying trends from the KPI data provided & then undertaking fault analysis via the symptom/trace data files, such as call processing files for the User/Signaling plane (tbh most call setup/dropped calls occur due to an issue on the signaling plane) be it drive test log files, bin logs from the NEs or the standard symptoms. From here, if possible I will either action or provide certain recommendations to resolve issues/faults.
*That is why many of you, if you use your mobile during the silent hours (0000-0200hrs) you will either be on another operators net, or another platform, such as GSM, as most rectification/upgrades are carried out in the maintenance window to reduce negative impact on the network IE: subscribers not being able make/receive calls*
Thats One part of my job: Sw upgrades, Hw upgrades, feature testing, IOT testing, HSDPA/HSUPA testing & some LTE (4G) testing on and on and on in the testbed.
Mulitple customers (Primary One in Germany, but provide support for operators in Austria, Croatia & Netherlands)
Not quite what I did in the Mob, but the training/trade/experience (TG3/AD) certainly helped.
You did ask!
T93.
AAAHHHHH Sh*t Sorry fellas, I did not note the forum (Duvet Fluffers) sorry, anyway, you know how I earn my pounds, or in this case...euros