asterisk users - Jan 2008 - Bunch of set-up/usage questions (SLA, MWI, SMS proxy's, crypto, Fax, etc)

Howdy,

Excuse the neophyte questions...  I was wondering:

(1) what's involved in setting up a call with encrypted media (I'm on a 
cable network and don't want my calls snooped);

(2) is there a cheat-sheet for configuring Sipura handsets/hardphones 
like the SPA-942, and in particular for message-waiting indicator and 
shared-line appearances?

(3) my PSTN service provider that I have SIP trunking to doesn't provide 
SMS service (yet or possibly ever)--is there a way to shop-out SMS for 
my associated numbers from someone else?  I eventually hope to have a 
cell phone with dataplan only that I then do SIP-over-UMTS (like a Nokia 
E70 or E61i, for instance)... if I'm moving towards having a single 
number, then I figure text messaging should work regardless of the 
device I'm using (softphone on a laptop, VoWifi handset, or POE 
hardphone).  Any service/any device, right?  That's what it's all about.

(4) I have an HP all-in-one officejet and a SPA-2000 (or is it an 
unlocked PAP2-NA?) that I can use for fax service, but was wondering if 
I could use my Asterisk box (it's a 400MHz Geode LX) as a fax server 
without too much impact.

Thanks,

-Philip

On Thu, 2008-01-31 at 10:45 -0800, Philip Prindeville
wrote:
> (1) what's involved in setting up a call with encrypted media (I'm
on a
> cable network and don't want my calls snooped);
Using IAX, it's pretty simple.  See
http://www.voip-info.org/wiki/view/IAX+encryption
> (2) is there a cheat-sheet for configuring Sipura handsets/hardphones 
> like the SPA-942, and in particular for message-waiting indicator and 
> shared-line appearances?
MWI is easy... simply add a "mailbox=1234 at vmcontext" setting to
sip.conf
for the phone.  As far as shared-line appearances go, the only way I
know of is to use the SPA-932 sidecar with the SPA-962 phone, as
documented here: http://www.voipinfo.org/wiki/view/SPA-962


-- 
Jared Smith
Community Relations Manager
Digium, Inc.