[Asterisk-Users] DID and Callback - Questions!!!

[Paul Rodan]

You mean can User 1 just pickup the phone and call User2 with just dialing 1
number? Seems easy enough, In asterisk1:

exten => 123456789,1,Dial(IAX2/userid at asterisk2/123456789)

Then in Asterisk2:
exten => 123456789,1,Dial(ZAP/g1/987654321)


Now whenever somebody calls 123456789 and it goes into Asterisk1, it sends
it via IAX2 to Asterisk2. Asterisk2 see's the incoming request and sends it
out it's Zap (E1) channel. So now it's a straight through process. I have a
local number here in South Florida, USA that dials into my Asterisk server,
then IAX2 to an Asterisk server in Australia, and then out their PSTN to my
uncles house. So now I can call him at his home with my cell phone, without
having a VOIP phone directly.


-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of U. Abdullah
Sheikh
Sent: Tuesday, January 04, 2005 12:12 PM
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] DID and Callback - Questions!!!

Hi,

I need some information on DID and Callback. Please read-on:


Question on DID (User1 Calling User2 via normal Telephone line and sending
its CLI:
Connectivity is as below:
User1 ==PSTN==> DigiumE1/Asterisk1 ==INTERNET==> DigiumE1/Asterisk2
==PSTN==> User2

1. Can User1 make a single stage call to User2 via Asterisk1?
  Currently User1 is able call User2 on Two Stage basis (Asterisk answers,
and then user1 hears a message, and then he is allowed to call)


Question on CALLBACK.
Connectivity diagram is as below:
User1 ==PSTN==> DigiumE1/Asterisk1

2. Is callback supported on Asterisk? How to implement this? ANI/CLI based? 
Web Based? SMS based? Any experiences, please share!!!

Thanks & regards
Shek


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