RE: WG Last Call: 3GPP Analysis Document

[Soliman Hesham <H.Soliman@flarion.com>]

Hi Alain, 

 > >=> I'd love to do that. However, how does this happen in 
 > >practice? Let's say 3GPP went with IPv6 only and 3GPP2
 > >did dual stack or IPv4 only for their IMS. And let's 
 > >say that some operators decide to enable IPv4 only
 > >in their 3GPP2 networks, or in their fixed broadband
 > >networks. Now a 3GPP operator has three options:
 > >
 > >1. Tell the others to upgrade to v6
 > >2. Tell its subscribers that they can't contact certain
 > >   networks.
 > >3. Provide a mechanism that allows subscribers to talk
 > >   to those v4 only people. 
 > >
 > >1) is unrealistic. If it can be done, then why hasn't
 > >it been done already? 2) doesn't seem realistic either
 > >from a commercial point of view
 > >
 > 
 > I'm a bit confused here. The voice communication using standard
 > technology would still work fine, right?

=> If you mean "using circuit switched voice" then
I agree. But any service using IP (including voice)
would not work.

 > So, this is only the value-added services, SIP-driven
 > that won't work between 3GPP & 3GPP2, right?

=> SIP services are intended for any peer to peer
application that uses IP. 

 > 
 > So, are you not trying to solve a social problem here instead
 > of a technical one?

=> :) am I? I think allowing people using difference
technologies to communicate is a good thing socially,
technically and commercially.

Hesham