bs_gets.txt _____________________________________________________________________________ BellSouth Government Emergency Telecommunications Service (GETS) (ripped from BellSouth) by phlux - fraud@telust.net _____________________________________________________________________________ Mainly to bring to light some of the more overlooked aspects of the GETS, and to clear up some of the BULLSHIT confabulation. Some quick information(read other GETS txts to familiarize yourself but don't fucking let them get to your head.); NPA 710 is non-geographical, and is toll-free, Using LATA 999(Assigned to the US Government). LATA 999 has no Rate Centers. Any exchanges in 710 are administered by NCS and NOT by NANPA. NANPA.com's NPA search states 710 has an in service date of 01/01/84 This is some what misleading as GETS only became operational in '94. (See NANPA document #: PL-NANP-172) The OCN assigned to the US Government is 4758. "4758 OFFICE OF THE MANAGER, NATIONAL COMMUNICATIONS SYS GENERAL" Ear candy: http://ch2.tripod.com/710_1169.wav (234k) REM begin snip _____________________________________________________________________________ Service Description The Office of the Manager, National Communications System has been charged by the White House with providing a survivable and enduring telecommunications capability for the purposes of National Security and Emergency Preparedness (NSEP). To this end, a set of switch-based and Advanced Intelligent Network features have been developed to provide a High Probability of Completion (HPC) for critical users of the Public Switch Network. GETS is an evolving service which allows authorized government users to gain access to enhanced call completion features. _ GETS features include: GETS Dialing Plan Calling Party Number Alternate Carrier Routing High Probability of Completion (HPC) HPC Detection and SS& IAM Message Priority HPC Trunk Queuing HPC Exemptions From Network Management Controls Enhanced Alternate Carrier Routing Default Routing _ GETS Dialing Plan The 710-NCS-GETS number is defined as the AIN Dialed Number Trigger (DNT) for GETS service. A user dials 1-710-NCS-GETS to place a call. The SCP then provides routing instructions to the SSP, which causes the call to complete to one of the IXC networks, contracted for GETS Service. GETS capabilities are currently offered in the networks of AT&T, MCI and Sprint. Once the call is completed to an IXC, authentication via PIN code is required and collection of the final routing number is performed. _ Calling Party Number The CPN feature, allows the calling party number to be replaced by the GETS number (i.e., 710-627-4387) which is needed to identify the call for GETS treatment by any network or network element. - Alternate Carrier Routing The Alternate Carrier Routing feature allows the End Office to route a GETS call alternately to the three Interexchange Carriers (IXCs), identified by Carrier Identification Codes (CICs) in an ordered sequence. The carrier chosen for the call is predetermined from a customer directed selection or user specified through the use of a dialed carrier code. _ High Probability of Completion This capability is invoked when a caller originates a call and dials a number of the form 710-NXX-XXX, typically 710-NCS-GETS. This capability detects such originations and marks them as GETS-HPC calls, whether at the originating EO, or at a Local Tandem. Once the call has been marked HPC, other GETS-HPC capabilities will provide Trunk Queuing, Network Management Exemptions, etc., to attempt to give the HPC call a higher probability of completion than non-GETS traffic during times of natural disaster or local or national emergency, when network congestion is likely. _ HPC Detection and SS7 IAM Message Priority This capability sets the Calling Party's Category value of the ISUP Initial Address Message of a HPC call to the NSEP value of "1". All other POTS traffic will have an assigned value of "0". The implementation of routing POTS traffic at a "0" level will not begin until 2000. Until that time, POTS traffic will continue to carry a routing value of "1". _ HPC Trunk Queuing The HPC Trunk Queuing (HPC TQ) feature allows trunk groups that are assigned HPC TQ to queue HPC calls within a route chain. _ HPC Exemptions from Network Management Controls This feature impacts network management capabilities associated with application of trunk group controls. Trunk group controls are used to limit the access of calls to a trunk group, to control the overflow of calls from a trunk group, and to offer alternate routing chains to busy groups. Protective controls are used to control the spread of congestion in the network by restricting normal trunk access and overflow. Expansive controls allow the routing to expand beyond the normal in-chain routing during failure or overflow conditions. This feature modifies several of these controls to make HPC calls exempt from control action. _ Enhanced Alternate Carrier Routing ACR, which has already been implemented in BellSouth, only detects trunks busy at the switch. Therefore, if all of the three carrier routes are busy, the call ends and is completed to a reorder tone. With EACR, the switch will attempt to route the call based on routing parameters provided by the SCP. The expected SCP action for GETS calls is to return another routing component instructing the switch to attempt the same set of carriers again. Other actions might also include other treatment (other than reorder), such as providing an announcement or providing a set of different routes to attempt. _ Default Routing This allows GETS calls to route to an IXC network in the event no AIN response is received from the SCP. The GETS call will be routed to the presubscribed or dial-selected (10XXX) IXC if an AIN fault occurs. _ Application The objective of GETS service is to provide authorized government users with a reliable and survivable nationwide NSEP switched voice and voice band data communications service by utilizing the Public Switch Network resources. The benefits of the service has been demonstrated to work during periods of extreme network congestion associated with catastrophic events. _ Benefits GETS service provides a mechanism to facilitate telecommunication of federal officials during emergency situations. Because telecommunications services are vulnerable to disruption by natural and man-made disaster GETS service is designed and maintained to operate in a constant state of readiness to make maximum use of all telephone resources should outages occur. _ Availability Calling Party Number (CPN) and Alternate Carrier Routing (ACR) has been implemented in all AIN capable NORTEL DMS 100/200 and Lucent 5ESS switches in the BellSouth region. The other GETS features (enhanced services) are currently under development and will be implemented over the next three years. _ Restrictions The use of the GETS Service is limited to authorized state, local and federal National Security and Emergency Preparedness users. GETS access is validated through the use of a personal identification number (PIN). GETS PINs are provided through subscription with the National Communications System. _____________________________________________________________________________ END snip Be sure and keep the 'Restrictions' paragraph in mind while contemplating the world, or perhaps a GETS HPC exploit. Keep checking hackcanada.com, nettwerked.net and telust.net for your 0h day. 03/05/2002 sksk.