Re: [Ecrit] 3GPP impact on draft-ecall: usage of legacy modem to transport MSD

[Randall Gellens <[e-mail]>]

Hi Christer,

The URNs are registered as child elements of the SOS service URN, so 
they are in no way limited to INFO.

At 5:27 AM +0000 6/5/16, Christer Holmberg wrote:

>  Clarification: the URNs cannot be limited to the INFO mechanism for 
> transporting MSD.
>
>  Regards,
>
>  Christer
>
>  Sent from my Windows Phone
>
>  From: <mailto:[e-mail]>Christer Holmberg
>  Sent: 05/06/2016 08:21
>  To: <mailto:[e-mail]>Randall Gellens; 
> <mailto:[e-mail]>[e-mail]
>  Subject: Re: [Ecrit] 3GPP impact on draft-ecall: usage of legacy 
> modem to transport MSD
>
>  Hi,
>
>  The draft also defines eCall URNs, and those cannot be limited to SIP.
>
>  Regards,
>
>  Christer
>
>  Sent from my Windows Phone
>
>  From: <mailto:[e-mail]>Randall Gellens
>  Sent: 05/06/2016 02:49
>  To: <mailto:[e-mail]>Christer Holmberg; 
> <mailto:[e-mail]>[e-mail]
>  Subject: Re: [Ecrit] 3GPP impact on draft-ecall: usage of legacy 
> modem to transport MSD
>
>  Hi Christer,
>
>  I think in-band modem is out of scope of the draft.  The draft is
>  limited to SIP signaling aspects.
>
>  --Randy
>
>  At 11:35 AM +0000 6/3/16, Christer Holmberg wrote:
>
>>   Hi,
>>
>>   3GPP agreed that, when communicating with a PSTN PSAP, it shall be
>>   possible to transport MSD using a legacy modem on the media plane. The
>>   reason is for not mandating the network to perform "interworking between
>>   MSD transported in INVITE/INFO and MSD transported using a legacy modem on
>>   the media plane".
>>
>>   I don't think the ecall draft needs to consider WHEN the MSD will be
>>   transported using a legacy modem on the media plane, but I think the draft
>>   should describe the possibility, so that PSAPs are aware of it.
>>
>>   Also, as the same eCall URNs will be used for calls where the MSD is
>>   transported using a legacy modem on the media plane, the draft must enable
>>   usage of the eCall URNs in setup of an IMS emergency call where MSD is
>>   transported using the legacy modem on the media plane.
>>
>>   Regards,
>>
>>   Christer
>>
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>> 
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>
>
>  --
>  Randall Gellens
>  Opinions are personal;    facts are suspect;    I speak for myself only
>  -------------- Randomly selected tag: ---------------
>>From new transmitters came the old stupidities.   --Bertolt Brecht


-- 
Randall Gellens
Opinions are personal;    facts are suspect;    I speak for myself only
-------------- Randomly selected tag: ---------------
True patriotism hates injustice in its own land more than anywhere else.
    --Clarence Darrow