asterisk users - Jan 2007 - I have to register asterisk/sip with a sipproxy that does not support authentication?

I have to register asterisk/sip with a sipproxy that does not support
authentication, I do not know how to tell Asterisk not to send authentication
request?
 
 
#  sip.conf 
[general]
insecure=very
permit=207.148.115.10/255.255.255.0
 
[myproxy]
type=friend
host=217.118.115.10
context=from-sip
 
 
 
 
# Logging:

<--- Reliably Transmitting (NAT) to 207.148.115.10:5060 --->
SIP/2.0 407 Proxy Authentication Required
Via: SIP/2.0/UDP
207.148.115.10:5060;branch=z9hG4bK3c4c865c4861d0ec0dc19fa40406cdf4;received=207.148.115.10
From: "sipx.at-n.com"
<sip:julien@207.148.115.10:5060>;tag=as1cc62bc2
To: <sip:897@207.148.115.10>;tag=as6b72831a
Call-ID: 23-3377872210-790438@ATN-VoIP-SW1
<mailto:23-3377872210-790438@ATN-VoIP-SW1.atlastelecom.com>
CSeq: 1 INVITE
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces
Proxy-Authenticate: Digest algorithm=MD5, realm="asterisk",
nonce="7b7f2a63"
Content-Length: 0
<------------>
Scheduling destruction of SIP dialog '23-3377872210-790438@ATN-VoIP-SW1'
in 32000 ms (Method: INVITE)
Found user 'julien'
sip*CLI> 
<--- SIP read from 207.148.115.10:5060 --->
ACK sip:207.148.115.20 SIP/2.0
Max-Forwards: 69
From: "sipx.at-n.com"
<sip:julien@207.148.115.10:5060>;tag=as1cc62bc2
To: <sip:897@207.148.115.10>;tag=as6b72831a
Call-ID: 23-3377872210-790438@ATN-VoIP-SW1
CSeq: 1 ACK
Via: SIP/2.0/UDP
207.148.115.10:5060;branch=z9hG4bK3c4c865c4861d0ec0dc19fa40406cdf4
Content-Length: 0
<------------->
--- (8 headers 0 lines) ---
sip*CLI> 
<--- SIP read from 207.148.115.10:5060 --->
SIP/2.0 407 Proxy Authentication Required
Proxy-Authenticate: Digest
algorithm=MD5,realm="asterisk",nonce="7b7f2a63"
To: <sip:897@207.148.115.10>;tag=3377872210-792296
From: "sipx.at-n.com" <sip:julien@207.148.115.20>;tag=as1cc62bc2
Contact: <sip:897@207.148.115.10:5060>
Call-ID: 768349713dfcfb290ff98f0d6a9b91a8@207.148.115.20
<mailto:768349713dfcfb290ff98f0d6a9b91a8@207.148.115.20>
CSeq: 102 INVITE
Via: SIP/2.0/UDP 207.148.115.20:5060;branch=z9hG4bK613354f9;rport
Content-Length: 0

Julien Chavanton wrote:
> I have to register asterisk/sip with a sipproxy that does not support
authentication, I do not know how to tell Asterisk not to send authentication
request?
SIP clients never request authentication/authorization.