nanog mailing list archives
Re: You're all over thinking this
From: Bjørn Mork <bjorn () mork no>
Date: Thu, 21 Jul 2005 16:43:02 +0200
Scott W Brim <swb () employees org> writes:
On 07/21/2005 09:32 AM, Joe Abley allegedly wrote:On 20 Jul 2005, at 21:46, Brad Knowles wrote:In the case of regular cell phones, if you are roaming on a network in a foreign country, or you have rented a local phone, I understand that the carriers have gotten together and made sure that the various 911/112/999 emergency services numbers work world-wide, so that if you're an American in Europe, you can still call 911 and have that work as expected.Cite? (This isn't my experience at all ...My experience is that the mobile network operators (in Europe and the USA (GSM) anyway) are lumping all of these together, so that no matter which you dial, you get the emergency service they connect you to. They added to the list of "special" numbers, with a many-to-one mapping of number to service.
The 112 emergency number is required by the GSM spec to work at all times, no matter what. This includes e.g. dialling with keypad lock enabled or without a valid sim card. Some phone manufacturers and/or operators have extended this to include 911 and other commonly used emergency numbers, but I don't think those are part of the spec. The requirement was probably included to satisfy european regulatory authorities who actively participated in the standardisation work in ETSI at the time. Bjørn
Current thread:
- Re: 911, was You're all over thinking this (was: Re: Vonage Selects TCS For VoIP E911 Service), (continued)
- Re: 911, was You're all over thinking this (was: Re: Vonage Selects TCS For VoIP E911 Service) Iljitsch van Beijnum (Jul 25)
- Re: 911, was You're all over thinking this (was: Re: Vonage Selects TCS For VoIP E911 Service) Michael . Dillon (Jul 25)
- Re: 911, was You're all over thinking this (was: Re: Vonage Selects TCS For VoIP E911 Service) Jay R. Ashworth (Jul 25)
- Re: 911, was You're all over thinking this (was: Re: Vonage Selects TCS For VoIP E911 Service) Simon Waters (Jul 25)
- Re: 911, was You're all over thinking this Peter Dambier (Jul 25)
- Re: 911, was You're all over thinking this Brad Knowles (Jul 25)
- Re: 911, was You're all over thinking this (was: Re: Vonage Selects TCS For VoIP E911 Service) Peter Corlett (Jul 25)
- Re: 911, was You're all over thinking this (was: Re: Vonage Selects TCS For VoIP E911 Service) Valdis . Kletnieks (Jul 25)
- Re: You're all over thinking this (was: Re: Vonage Selects TCS For VoIP E911 Service) Joe Abley (Jul 21)
- Re: You're all over thinking this Scott W Brim (Jul 21)
- Re: You're all over thinking this Bjørn Mork (Jul 21)
- Re: You're all over thinking this Crist Clark (Jul 21)
- Re: You're all over thinking this Steve Sobol (Jul 21)
- Re: You're all over thinking this Crist Clark (Jul 22)
- Message not available
- Re: You're all over thinking this Crist Clark (Jul 22)
- Re: Vonage Selects TCS For VoIP E911 Service Michael . Dillon (Jul 20)
- Re: Vonage Selects TCS For VoIP E911 Service Andre Oppermann (Jul 20)