Problems with dialing

I have started to play a little bit with Asterisk … to compare it with Cisco CCM … and I need little help
I have installed Asterisk on VM and softphone ZoIPer on two laptops in same network.
New lines in next files:

[code]
iax.conf

[2222]
type=friend
username=2222
secret=nenad
host=dynamic
context=tutorial

[2223]
type=friend
username=2223
secret=nenad
host=dynamic
context=tutorial [/code]

[code]
extensions.conf

exten => 1234,1,Dial(SIP/nenad)
exten => 1235,1,Dial(SIP/Test)
exten => 2222,1,Dial(IAX2/2222)
exten => 2223,1,Dial(IAX2/2223)[/code]

[code]
sip.conf

[nenad]
type=friend
username=nenad
secret=1234
host=dynamic
context==tutorial

[Test]
type=friend
username=Test
secret=1234
host=dynamic
context=tutorial[/code]

softphones are successfully registered but I can’t call using number 2223. Message is no route to destination
I can call only by using SIP:192.168.1.2

Help please.
Thanks![/b]

Same thing happens when I use nenad and Test and try to call 1235.