Scott Laird wrote:
On Apr 5, 2004, at 12:49 PM, Olle E. Johansson wrote:
SRTP protects RTP/UDP media with encryption.
There are concerns that sending positioning within SIP/UDP will reveal
private detailes, like position. Hence the encryption requirement.
The position data needs to be given by the ISP in DHCP configuration.
This brings up two more questions:
1. What does 'positioning' mean in a SIP context--Google isn't
helpful. Is this basically just physical location?
If I understand Brian correctly, it will be a global system that can look up
the closes 911 service - any where. Possibly latitude and longitude.
Drafts out there somewhere, RFCs on it's way before new year.
2. Is anyone working on SRTP for Asterisk? Are there any SRTP clients
out there?
SIPfoundry got one, another one on SourceForge - maybe they're the same.
More information about SRTP and pointers:
http://www.voip-info.org/tiki-index.php?page=srtp
/Olle
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