Re: [rtcweb] Requiring ICE for RTC calls

Iñaki Baz Castillo <> Mon, 26 September 2011 15:12 UTC

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Date: Mon, 26 Sep 2011 17:15:37 +0200
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From: Iñaki Baz Castillo <>
To: Cameron Byrne <>
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Cc: Randell Jesup <>,
Subject: Re: [rtcweb] Requiring ICE for RTC calls
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2011/9/26 Cameron Byrne <>:
> Maybe I misundersatnd you, but the PSTN carriers today and in the future
> will always run an SBC because that is their security policy.

Hi. Please let's forget "SBC" and let's go to a simpler case: a PSTN
provider that speeak SIP and RTP with clients and SIP/SS7/ISUP with
other PSTN operators. The signaling and media conversion is done in
PSTN gateways. Most of them, for sure, don't implement ICE neither

Anyhow, concerning this subject, I already proposed something in other
thread: why couldn't the provider (the web site) tell their WebRTC
clients wheter they shoud or not accept media sessions without ICE
and/or SRTP?

For example, a telco operator that creates a web site for allow its
clients making PSTN calls from the web, could relax those requirements
and don't mandate ICE/SRTP. In the other side, a social network web
site which just allows calls between web users could mandate them.
Such configuration could be retrieved by the WebRTC client via HTTP or
WebSocket by standarizing a document format.


Iñaki Baz Castillo