On Mar 11, 2005, at 7:20 PM, Scott Laird wrote:
On Mar 11, 2005, at 5:31 PM, TC wrote:
I was just reading the release notes for the latest SPA-841 firmware,http://www.watersprings.org/pub/id/draft-sharath-sipb-requirements -00.txt
and noticed that Sipura added support for "SIP-B" to this release.
This apparently adds support for bridged line appearances, parking
softkeys, called party ID, external missed call summary support, and a
handful of other useful features. The release notes are available at
http://sipura.com/Documents/rnote/rn841-3.1.1a.htm
Does anyone have a clue where to find specs on SIP-B? Google isn't being very helpful.
but its been deleted from
http://www.ietf.org/internet-drafts/draft-sharath-sipb-requirements -01.txt
it was never an rfc :(
so did the big boys go it alone :) ?
Those are both just requirements, not really protocol specifications. A lot of stuff is implemented without being an RFC, that's not really a big problem--look at IAX--but it'd be nice if there was some public spec for SIP-B that we could look at.
Following up on my own post--I sent mail to [EMAIL PROTECTED] asking about SIP-B documentation and received a very quick response: "Go ask Sylantro." I did a bit of digging and found a contact inside of Sylantro, and he provided me with a copy of Sylantro's SIP extension documentation and a couple new I-Ds. Most of the changes that show up in the SPA-841 look like fairly obvious SIP extensions, but I haven't finished reading the docs yet. Sylantro seems pretty open about pushing their SIP extensions into the IETF standardization process, and this is obviously a good thing.
Frankly, at this point, the SPA-841 probably has more features the the Cisco 7960 series phones. The only software feature that I care about that the Sipura is lacking is support for external address books. That can probably be hacked by force-feeding address information into the phone's web server. I'll probably do that this weekend. Considering that the SPA-841 is cheaper then the software license for Cisco's phones, that's really impressive.
FWIW, I received my SPA-841 last week, and none of the buttons feel sticky at all. Since that was a common complaint with early SPA-841 users, I suspect that they've tweaked things a bit and fixed the newer batches of phones.
Scott
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