TYPHON HX: NSA Exploit of the Day

Today's item from the NSA's Tailored Access Operations (TAO) group implant catalog:

TYPHON HX (S//SI//FVEY) Base Station Router - Network-In-a-Box (NIB) supporting GSM bands 850/900/1800/1900 and associated full GSM signaling and call control.
(S//SI//FVEY) Tactical SIGINT elements use this equipment to find, fix and finish targeted handset users.
(S//SI) Target GSM handset registers with BSR unit.
(S//SI) Operators are able to geolocate registered handsets, capturing the user.
(S//SI//REL) The macro-class Typhon is a Network-In-a-Box (NIB), which includes all the necessary architecture to support Mobile Station call processing and SMS messaging in a stand-alone chassis with a pre-provisioning capability.
(S//SI//REL) The Typhon system kit includes the amplified Typhon system, OAM&P Laptop, cables, antennas and AD/DC power supply.
(U//FOUO) An 800 WH LiIon Battery kit is offered separately.
(U) A bracket and mounting kit are available upon request.
(U) Status: Available 4 mos ARO
(S//SI//REL) Operational Restrictions exist for equipment deployment.

Page, with graphics, is here. General information about TAO and the catalog is here.