Here are the important lines from the trace: (I don't think I need to paste the whole thing.)

recv 1521 bytes from tcp/[192.168.4.254]:4025 at 01:28:45.696774:

------------------------------------------------------------------------

Via: SIP/2.0/TCP 192.168.4.254:4025;rport;branch=z9hG4bKPjZiQxS2mheTBbTXalnSTcX-9-vSvvYydR

Max-Forwards: 70

From: "110" <sip:1001@192.168.4.1>;tag=SoDYLlxdRfdsHMTYaCd6LprFvMe6ROpl

To: "110" <sip:1001@192.168.4.1>

Call-ID: 6Y7zlZiZJekTAYupYa4SU.v2.8vpto97

CSeq: 4019 REGISTER

User-Agent: Cisco-CP3905/9.2.1

[other stuff...]

------------------------------------------------------------------------

send 684 bytes to tcp/[192.168.4.254]:4025 at 01:28:45.856104:

------------------------------------------------------------------------

SIP/2.0 401 Unauthorized

Via: SIP/2.0/TCP 192.168.4.254:4025;rport=4025;branch=z9hG4bKPjZiQxS2mheTBbTXalnSTcX-9-vSvvYydR

From: "110" <sip:1001@192.168.4.1>;tag=SoDYLlxdRfdsHMTYaCd6LprFvMe6ROpl

To: "110" <sip:1001@192.168.4.1>;tag=UrQB9NZ278Hpc

Call-ID: 6Y7zlZiZJekTAYupYa4SU.v2.8vpto97

[I don't think the other stuff is pertinent.]

And later:

------------------------------------------------------------------------

send 562 bytes to tcp/[192.168.4.254]:4025 at 01:28:46.032084:

------------------------------------------------------------------------

SIP/2.0 403 Forbidden

Via: SIP/2.0/TCP 192.168.4.254:4025;rport=4025;branch=z9hG4bKPjbdyYmV-sH2X-.Cs-LZUG9P36AHF5dn4E

From: "110" <sip:1001@192.168.4.1>;tag=SoDYLlxdRfdsHMTYaCd6LprFvMe6ROpl

To: "110" <sip:1001@192.168.4.1>;tag=v1g4aHg64H88Q

Call-ID: 6Y7zlZiZJekTAYupYa4SU.v2.8vpto97

CSeq: 4020 REGISTER

I have put a name/password in the Cisco config file, and the same name/password in conf/directory/1001.xml. Should this go in the conf/sip_profiles/internal section instead?

Steve

On Thu, Dec 27, 2012 at 4:53 PM, Michael Collins <msc@freeswitch.org> wrote:

Can you capture the SIP traffic between the phone and the server and drop it on pastebin.freeswitch.org? It might be good to review the SIP dialog, just in case there are some clues there. You can use the fs_cli if you wish:
sofia profile internal siptrace on
(if you're using the example configs that come with FreeSWITCH. Use the correct profile name if you have one other than "internal" that you're using.)