I have installed freeSwitch 1.1beta from the git repository (FreeSWITCH-mod_sofia/1.1.beta1-git-d2edcad 2012-03-31 23-42-27 +0000). My SIP provider (Netelip) is defined in conf/directory/default/example.conf.xml:
<include>
<user id="$${default_provider}">
<gateways>
<gateway name="$${default_provider}">
<param name="username" value="$${default_provider_username}"/>
<param name="password" value="$${default_provider_password}"/>
<param name="from-user" value="$${default_provider_username}"/>
<param name="from-domain" value="$${default_provider_from_domain}"/>
<param name="expire-seconds" value="600"/>
<param name="register" value="$${default_provider_register}"/>
<param name="retry-seconds" value="30"/>
<param name="extension" value="$${default_provider_contact}"/>
<param name="auth-calls" value="false"/>
<!--<param name="contact-params" value="domain_name=$${domain}"/>-->
<param name="context" value="public"/>
</gateway>
</gateways>
<params>
<param name="password" value="$${default_provider_password}"/>
</params>
</user>
</include>
freeswitch@internal>
recv 1000 bytes from udp/[194.140.135.80]:5060 at 23:23:10.163377:
------------------------------------------------------------------------
Via: SIP/2.0/UDP 194.140.135.80:5060;branch=z9hG4bK6bb16a10;rport
CSeq: 102 INVITE
User-Agent: Netelip
Max-Forwards: 70
Date: Fri, 13 Apr 2012 23:23:51 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO
Supported: replaces
Content-Type: application/sdp
Content-Length: 425
v=0
o=root 1249 1249 IN IP4 194.140.135.80
s=session
c=IN IP4 194.140.135.80
t=0 0
m=audio 16474 RTP/AVP 8 0 97 3 18 4 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:97 iLBC/8000
a=fmtp:97 mode=30
a=rtpmap:3 GSM/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:4 G723/8000
a=fmtp:4 annexa=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv
------------------------------------------------------------------------
send 382 bytes to udp/[194.140.135.80]:5060 at 23:23:10.164409:
------------------------------------------------------------------------
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 194.140.135.80:5060;branch=z9hG4bK6bb16a10;rport=5060
CSeq: 102 INVITE
User-Agent: FreeSWITCH-mod_sofia/1.1.beta1-git-d2edcad 2012-03-31 23-42-27 +0000
Content-Length: 0
------------------------------------------------------------------------
2012-04-14 01:23:10.162331 [DEBUG] sofia.c:7598 IP 194.140.135.80 Rejected by acl "domains". Falling back to Digest auth.
send 871 bytes to udp/[194.140.135.80]:5060 at 23:23:10.166026:
------------------------------------------------------------------------
SIP/2.0 407 Proxy Authentication Required
Via: SIP/2.0/UDP 194.140.135.80:5060;branch=z9hG4bK6bb16a10;rport=5060
CSeq: 102 INVITE
User-Agent: FreeSWITCH-mod_sofia/1.1.beta1-git-d2edcad 2012-03-31 23-42-27 +0000
Accept: application/sdp
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE
Supported: timer, precondition, path, replaces
Allow-Events: talk, hold, presence, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer
Proxy-Authenticate: Digest realm="194.140.135.80", nonce="bc1571d4-0957-4609-a887-7c3359b9ae9c", algorithm=MD5, qop="auth"
Content-Length: 0