Talk:GSM-R

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[edit] GSM-R deployment

where is GSM-R deployed these days? 59.144.163.16 11:55, 8 March 2007 (UTC)

GSM-R is actually deployed on French East High speed line (LGV Est) for a commercial use (TGV POS and ICE trains). I ever done tests on GSM-R network on Switzerland (Rail Networks near Berne) and German Rail Networks (near Stuttgart), Rotterdam in Netherlands, Madrid in Spain, Trondheim in Norway, Upsala in Sweden, Roma in Italy (yes I really go there, that's a lot of places!!!), but I don't know if it's actually in use on commercial lines. Niouniou46 01:18, 22 June 2007 (UTC)

[edit] Sharing between GSM and GSM-R

Is it true that GSM-M can use GSM infrastructure where it exists, and only has to build its own towers in say "blind spots" where GSM coverage is poor. And visa versa. Tabletop 02:08, 24 September 2007 (UTC)

I know that GSM-R phones can work on GSM networks, I don't know if is true also the vice versa. --Ale85 (talk) 15:50, 17 February 2008 (UTC)

I can answer both these questions for you. 1.It is not true to say that railways only build GSM-R infrastructure where GSM has no coverage. The GSM-R networks are continuous over entire routes. GSM may be used as a backup in the event of failure. GSM does not have the necessary functionality to provide the features required of a secure railway radio system.

2. Technically GSM-R handsets/cab radios are capable of operating in both the railway and public GSM bands. However, the ability to do this requires so-called "Roaming Agreements" which must be negotiated with the operators of public networks. Roaming from public networks into the railway networks is not permitted due to the potential to compromise railway safety. In paractice there are some roaming agreements between railways and GSM public network operators and are used where GSM-R doesn't exist or in the event of failure of the railway network.

I hope this answers your questions - if not there are a number of publications and web sites that may be referred to for more detail on the subject including the Institute of Railway Signal Engineers' (IRSE) excellent book on Railway Telecommunications published in 2004. —Preceding unsigned comment added by 79.65.206.223 (talk) 13:43, 14 May 2008 (UTC)