Re: [MMUSIC] Connection Data Capability (ccap) and IP-addresses (draft-ietf-mmusic-sdp-miscellaneous-caps-04)

Andrew Allen <> Sun, 24 March 2013 17:35 UTC

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From: Andrew Allen <>
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Thread-Topic: [MMUSIC] Connection Data Capability (ccap) and IP-addresses (draft-ietf-mmusic-sdp-miscellaneous-caps-04)
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Subject: Re: [MMUSIC] Connection Data Capability (ccap) and IP-addresses (draft-ietf-mmusic-sdp-miscellaneous-caps-04)
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----- Original Message -----
From: Hadriel Kaplan []
Sent: Sunday, March 24, 2013 12:03 PM Central Standard Time
To: Andrew Allen
Cc: (E-mail) <>
Subject: Re: [MMUSIC] Connection Data Capability (ccap) and	IP-addresses	(draft-ietf-mmusic-sdp-miscellaneous-caps-04)

On Mar 22, 2013, at 1:35 AM, Andrew Allen <> wrote:

> CCAP is currently only used by 3GPP to allow the UA to choose between PS and CS for a terminating call at call setup when the UA has the possibility to use either PS or CS for the call.
> Mid call Handover PS to CS and CS to PS uses other techniques and does not involve use of CCAP.

Then it sounds to me like 3GPP only needs ccap to indicate PSTN; it does not need to indicate an IP Address, as the c= line can do that.


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