| 7 | Train controllers |- | 8 | Mobile Subscriber Number |- | 9 | Reserved for breakout codes and national use |- | 0 | Reserved for access to public or to other GSM-R networks |- |} Those numbers are used for functional registration and fixed entries for MSISDN or short dialcodes as defined within the HLR. 807660 for example defines a MSISDN of a mobile subscriber. The number 23030301 would be a functional number associated with the train number 30303 and the role of the user 01. Eirene features Functional number management Functional numbering Allows to call a mobile station by its function: driver of the train xxx , ... It uses: USSD and Follow Me UUS1 (for number display) Location dependent addressing Establishes a call from a mobile station to (usually) a fixed subscriber/dispatcher performing a function in the area where the mobile station is located. End Call Confirmation End Call Confirmation feature is only available for highest priority (Priority level 0) group calls (VGCS) and broadcast calls (VBS) (see eMLPP). It consists of an end call report which sent by all mobile stations which joined the high priority call (initiator included). This report informs about: Call type Call duration Mobile station identity End call cause Normal, ended by user, mobile station power off by user, power off due to low battery, …) … If the report cannot be sent (mobile station power off by user or power off due to low battery), the mobile station will try again (several times if needed) to send the report at the next power on. Shunting mode Shunting mode is the application that will regulate and control user access to shunting communications. A Link Assurance Signal (LAS) is provided to give reassurance to the driver that the radio link is working. Direct mode Direct mode is the walkie-talkie mode (mobiles station talking to each other without the network) and has been proposed in Eirene, however it has never been in application since being based on analogue radio. Sagemcom claims to have developed a GSM direct mode, not currently recognized in the GSM-R specification, and has no frequency allocation. GSM-R market GSM-R market groups Different groups make up the GSM-R market: The network operators and the railway operators {|class="wikitable" |+ Contract awarded / Currently implementing: |- ! Country ! Network operator ! Railway operator(s) ! Equipment |- |Algeria || SNTF