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Re: [rtcweb] Forking & Early Media - Was Re: Minimal SDP negotiation mechanism

Hadriel Kaplan <HKaplan@acmepacket.com> Tue, 20 September 2011 22:15 UTC

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From: Hadriel Kaplan <HKaplan@acmepacket.com>
To: "Olle E. Johansson" <oej@edvina.net>
Thread-Topic: [rtcweb] Forking & Early Media - Was Re: Minimal SDP negotiation mechanism
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Date: Tue, 20 Sep 2011 22:17:27 +0000
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Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Forking & Early Media - Was Re: Minimal SDP negotiation mechanism
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On Sep 20, 2011, at 5:19 PM, Olle E. Johansson wrote:

> Background to the fedex/DTMF hints:
> 
> Fedex for some reason got a deal not only to send early media from a commercial company, but also have an IVR server and request DTMF while still not answering the call. This forced a code change in quite a lot of SIP servers... ;-)

And it's a lot bigger list than just FedEx.  American Airlines, United Airlines, the IRS, 1-800-CALL-ATT, etc.  (American Airlines is usually the canonical example people refer to)

-hadriel

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