Problems with asterisk calls

I am the begginer as far as astersisk is concerned.I have received three voip test numbers. I have managed to configure them with asterisk. It is possible now to call me from the outside, I can answer that calls. The problem is that I cannot call from one test number to another. Below there is a file sip.conf as well as what I have added to file extensions.conf. Could you please help.

sip.conf

[general]
context=default
allowoverlap=no
bindport=5060
bindaddr=0.0.0.0
srvlookup=yes
disallow=all
allow=ulaw
allow=alaw
useragent=office

register => number1:pass1@sip.provider/101
register => number2:pass2@sip.provider/102
register => number3:pass3@sip.provider/103

externip = x.x.x.x
localnet=192.168.1.0/255.255.0.0
nat=yes

[authentication]

[out01]
type=peer
secret=pass1
user=number1
username=number1
fromuser=number1
authname=number1
callerpage=number1
fromdomain=sip.provider
host=sip.provider
insecure=very
nat=yes
dtmfmode=inband

[tel01]
type=friend
context=default
nat=yes
canreinvite=no
username=tel01
secret=secret01
host=dynamic
regexten=101
callerpage=number1

[out02]
type=peer
secret=pass2
user=number2
username=number2
fromuser=number2
authname=number2
callerpage=number2
fromdomain=sip.provider
host=sip.provider
insecure=very
nat=yes
dtmfmode=inband

[tel02]
type=friend
context=default
nat=yes
canreinvite=no
username=tel02
secret=secret02
host=dynamic
regexten=102
callerpage=number2

[out03]
type=peer
secret=pass3
user=number3
username=number3
fromuser=number3
authname=number3
callerpage=number3
fromdomain=sip.provider
host=sip.provider
insecure=very
nat=yes
dtmfmode=inband

[tel03]
type=friend
context=default
nat=yes
canreinvite=no
username=tel03
secret=secret03
host=dynamic
regexten=103
callerpage=number3

extensions.conf

exten => 101,1,Dial(SIP/tel01)
exten => _0X.,1,Dial(SIP/${EXTEN}@out01)

exten => 102,1,Dial(SIP/tel02)
exten => _0X.,1,Dial(SIP/${EXTEN}@out02)

exten => 103,1,Dial(SIP/tel03)
exten => _0X.,1,Dial(SIP/${EXTEN}@out03)

What error message(s) do you see when you try?

What message do you mean? When calling locally there is no responce and no message appears (if you mean some king of pop up). I can hear the information I cannot understand clearly:) but it goes something like this: “This account is …use. If you think this recording is in air contact you system administrator”.
As far as logs are concerned I have something like this in file Master.csv:
"“tel01” “,“tel01”,“0xxxxxxxxx”,“default”,“Local/0xxxxxxxxx@default-f2f7,2”,“SIP/out01-089aca80”,“Dial”,“SIP/0xxxxxxxxx@out01”,“2007-02-22 19:09:35”,”",“2007-02-22 19:09:48”,“13”,“0”,“NO ANSWER”,“DOCUMENTATION”,"",“1172167775.180”,""

[quote=“malut”]
"“tel01” “,“tel01”,“0xxxxxxxxx”,“default”,“Local/0xxxxxxxxx@default-f2f7,2”,“SIP/out01-089aca80”,“Dial”,“SIP/0xxxxxxxxx@out01”,“2007-02-22 19:09:35”,”",“2007-02-22 19:09:48”,“13”,“0”,“NO ANSWER”,“DOCUMENTATION”,"",“1172167775.180”,""[/quote]

Looks to me that your call is transmitted correctly (especially if you can hear a recording from the service provider). Your service provider may be able to troubleshoot with you. I see this dial string “SIP/0xxxxxxxxx@out01”. Is 0xxxxxxxxx the correct password?

0xxxxxxxxx is not the password but telephone number (I don’t want to present it here). I am able do receive calls as well as call an outside within the same provider. I have 3 telephone numbers and I cannot call from my first number to another.

Sorry I confused myself. You mean number1, right? It’s probably a problem in your dial string. Try Dial(SIP/out01) (without number1@).

Hello, it turned out that the the cause of my problems was a stupid mistake in something else that I have asked here nevertheless than you very much for all you help. Have a nice weekend. Best regards!