[Asterisk-Users] Zaptel/Zapata and SIP relationship

[Steve D.]

In my test configuration, I have a Budgetone, an Iaxy and two computers
running X-Lite.  My server has one X100P in it (no line hooked up yet).
Currently, I can call from any phone to any phone except on one, when
the caller calls me, I can't hear the caller (using an X-Lite) but the
caller can hear me.  If I call him, everything works fine.  If I pick up
another phone while two phones are talking, the connection dies (both
phones go to busy signal).

I am very new to Asterisk and I am reading everything I can get my hands
on but this one is eluding me.  What exactly is the relationship between
Sip to Sip and Sip to IAX and Channels?  Do I need more channels defined
in Zaptel/Zapata?  Everytime I try to add a channel ztcfg errors out.
Does each connection require a separate channel?  One other thing, are
the context names in one file related to context names in another file?

What I am trying to accomplish is putting the Asterisk box at my office
and have 3 or 4 SIP/IAXY phones located at various points on a wireless
network (40 sq miles).

And failing all else, what is the going hourly rate for commercial
support?  I'm sure someone who knows what they are doing could have this
figured out in an hour instead of me banging my head against the wall
for another week.  At least that way, I'd have a working system to
reverse engineer.

Thanks for any help.

Steve D.


Typical entries:

Sip.conf
[2002]
type=friend
username=2002
secret=2002
host=dynamic
context=internal
mailbox=2002
defaultip=192.168.140.51
callerid="Kevin" <2002>
canreinvite=no
reinvite=no
dtmfmode=inband
disallow=all
allow=ulaw
allow=gsm

Iax.conf entry:
[2050]
type=friend
;accountcode=iaxy
host=dynamic
username=2050
auth=md5
secret=2050
context=internal
disallow=all
allow=ulaw
callerid="Iaxy Box" <2050>
trunk=no
mailbox=2050

Extension.conf (typical)
[internal]
exten => 2002,1,Dial(SIP/2002,20)
exten => 2002,2,Voicemail(u2002)
exten => 2002,102,Voicemail(b2002)
exten => 2002,103,Hangup

exten => 2050,1,Dial(IAX2/2050,20)
exten => 2050,2,Voicemail(u2050)
exten => 2050,102,Voicemail(b2050)
exten => 2050,103,Hangup