[Asterisk-Users] Newbie's doubt on sip.conf

[Steve Totaro]

use the wiki as a reference
www.voip-info.org


----- Original Message ----- 
From: "kaiduan xie" <kaiduanx at yahoo.ca>
To: <asterisk-users at lists.digium.com>
Cc: <asteriskuser at aktzero.com>
Sent: Wednesday, July 07, 2004 12:10 PM
Subject: RE: [Asterisk-Users] Newbie's doubt on sip.conf


> Andrew,
> 
> Thanks for help. But you still doesnot answer my
> questions. Please see the inline comments.
> 
> BTW, I use "Getting Started with Asterisk" as
> reference
> (http://www.automated.it/guidetoasterisk.htm#_Toc49248767).
> 
> Thanks,
> 
> kaiduan
> --- Andrew Thompson <asteriskuser at aktzero.com> wrote:
> > kaiduan xie wrote:
> > > 1) Can I have two or more SIP phones acting as
> > > extensions in one Asterisk box, and at the same
> > time, registered to a
> > > SIP proxy, say Free World Dialup? If yes, how? 
> > 
> > Your phone would have to support registering with
> > more than one sip server.
> > It may seem like what you want, but I doubt it is
> > necessary.
> 
> In my case, each SIP phones register with FWD, and was
> assigned a extension. I can put more register for each
> phone in sip.conf. For example,
> 
> register => 21103:mypassword at fwd.pulver.com/1000
> register => 21104:mypassword at fwd.pulver.com/2000
> 
> My concern is how to setup the [fwd.pulver.com]
> 
> [fwd.pulver.com]
> type=friend
> secret=mypassword
> username=my fwd number
> host=fwd.pulver.com
> 
> since there are two FWD numbers, should I set secret
> and username for each SIP Phones?
> 
> Also, you still doesnot answer my question, what is
> the use of section [fwd.pulver.com]? Why we need
> secret and username in [fwd.pulver.com] since we
> already provide it in "register =>
> 21104:mypassword at fwd.pulver.com/2000"?
> 
> > > 2) Why we need a section in the sip.conf for the
> > > proxy, say, Free World Dialup's fwd.pulver.com? In
> > the
> > > case of 1), how to assign the value to section
> > [fwd.pulver.com],
> > > since there are more than one sip phone, each with
> > different FWD
> > > number?  
> > 
> > You should be able to register and listen for calls
> > from multiple fwd
> > numbers and direct them to different extensions.
> > 
> > > 3) Can anyone explain the meaning of "peer",
> > "friend",
> > > "user" in more details? For each case, what is the
> > > role of Asterisk in SIP world, a UA, a proxy, or
> > > others?
> > 
> > Peer: A connection that sends calls to asterisk.
> > User: A connection that asterisk sends calls out to.
> > Friend: an attempt at a combination of both, to
> > simplify set up of phones
> > that send and receive calls. (There are several
> > people here who will tell
> > you friend is evil.)
> 
> Just to complain that the definition of "peer",
> "user", and "Friend" is not self-explained, :) 
> 
> > > 4) If we only use SIP phone as extensions in
> > Asterisk,
> > > the SIP phone doesnot associate with outside
> > proxy,
> > > does Asterisk act as a proxy for inter-extension
> > call
> > > between the SIP phones? In this case, for the
> > outgoing
> > >  call originating from SIP phone to other network,
> > > say, PSTN, does Asterisk act as a gateway? (PSTN
> > > connection with Asterisk is assumed.)
> > 
> > Hmm, let me give brief examples of things you can
> > do(* = asterisk): 
> > sip phone -> * -> sip phone
> > sip phone -> * -> hardline adapter -> PSTN or
> > T1/E1/BRI/etc.
> > sip phone -> * -> other voip service(fwd, iaxtel,
> > etc)
> > sip phone -> * -> other voip service(voicepulse,
> > nufone, iconnecthere) ->
> > PSTN
> 
> 
> > Most(if not all) of these can be turned around so
> > that they are still valid
> > reading right to left.
> > 
> > -----
> > Andrew Thompson
> > http://aktzero.com/
> > http://www.retirequickly.com/43653
> > 
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