[VOIPSEC] Odd e911 VoIP Regulatory Question

[Klaus Darilion]

Victor Pascual Ávila schrieb:
> Hi Klaus,
> 
> On Thu, Jan 29, 2009 at 1:33 PM, Klaus Darilion
> <klaus.mailinglists at pernau.at> wrote:
>>
>> Victor Pascual Ávila schrieb:
>>> 2009/1/29 Danijel Starman <Danijel.Starman at iskon.hr>:
>>>>> -----Original Message-----
>>>>> From: voipsec-bounces at voipsa.org
>>>>> [mailto:voipsec-bounces at voipsa.org] On Behalf Of Carlos Alvarez
>>>>> Sent: 29. siječanj 2009 2:57
>>>>> To: voipsec at voipsa.org
>>>>> Subject: Re: [VOIPSEC] Odd e911 VoIP Regulatory Question
>>>>>
>>>>>> On Jan 28, 2009, at 4:54 PM, Dustin D. Trammell wrote:
>>>>>>
>>>>>> If he's disconnecting them due to nonpayment, I would argue
>>>>> that it's
>>>>>> safe to say that they are no longer a customer.  You left
>>>>> off the second
>>>>>> half of that bullet point.  Here it is in it's entirety:
>>>>> That's a very logical argument.  However, many huge lawsuits have
>>>>> drained a lot of money from defendants with a logical defense.  The
>>>>> question here is two-fold in my opinion:  What am I legally
>>>>> required to
>>>>> do, and what should I do to cover my butt?
>>>>>
>>>>> We have not yet had to disconnect a customer for non-payment,
>>>>> but this
>>>>> discussion has pointed out the need for us to at least
>>>>> include language
>>>>> in our contract that specifies that we will not carry 911 calls if a
>>>>> customer is disconnected for any reason.
>>>> This is an interesting discussion. I think a lawyer should be consulted
>>>> in any case.
>>>> Our residential customers are SIP users, first step after they don't pay
>>>> after warnings is to stop them from making calls except for the emergency
>>>> numbers and our toll free number. We are required by law to do this (In
>>>> Croatia). If the customer doesn't pay after this after a period he is
>>>> deactivated in our system and he can't make any calls. I belive this is in
>>>> the contract the user signs (but I will check). I don't see a reason that a
>>>> SIP trunk (or any other trunk) user should be any different.
>>> I've just taken out my SIM card from my GSM phone, and I can still
>>> dial the emergency number (112). Why should this be different for VoIP
>>> networks?
>> Your GSM phone can listen for broadcast signals of available GSM networks
>> and thus it is technically possible.
> 
> I was not discussing whether it is technically possible or not-- my
> point was that the GSM operator will route my call (I'll use
> resources) if I'm not a fair customer and even if I'm not a customer
> at all (DoS opportunity?). So, if my SIP UA is configured to use a
> given service provider but I didn't pay the bill: shall the service
> provider reject my call? In addition: shall any service provider
> challenge such an invite? (again, DoS opportunity?)

I think this question is a matter of national regulation and can not be 
answered in general.

klaus

> 
> I'm pretty sure it has been previously discussed, but I didn't follow it.
> 
>> If you have a naked SIP phone, the phone can not listen for available SIP
>> providers. Nevertheless there should be no need. The PSAP should be
>> reachable also via SIP directly. The PSAP can be found using lost. For more
>> info just take a look at the ecrit IETF WG and the NG911 project.
> 
> This is an interesting work indeed.
> 
> Cheers,