Need help using IAD2431 with Asterisk

Hello,

I am trying to connect a Cisco IAD2431 to asterisk (through a NAT)
I tried these directions for setting up the IAD.
sip-ua.com/wiki/index.php/Mi … way_Config

What should my sip.conf look like for this device?
As near as I can tell the iad fails to register to Asterisk.
Or does it? How can I tell?

I turned on sip debug in asterisk and it looks like they are talking to each other but I see errors like this:
[Mar 19 18:19:39] WARNING[23133][C-0000f6c4]: chan_sip.c:16489 check_auth: username mismatch, have <2441>, digest has

And I see errors like this:
[Mar 19 18:05:52] NOTICE[23133]: chan_sip.c:28201 handle_request_register: Registration from ‘“2446” sip:2446@192.227.141.103’ failed for ‘70.174.184.5:54772’ - Wrong password

The dial peers (phones) on my iad are 244[1-8].
So the error above seems to indicate that phone 2446 failed to register.

Here is what I have for sip.conf.
[iad2431b]
secret=password
type=friend
host=dynamic
port=5060
disallow=all
allow=g711ulaw
nat=yes
context=mycontext
deny=0.0.0.0/0.0.0.0
permit=70.174.184.5/255.255.255.255

Thanks,
-Steve

Username-mismatch between the device and Your sip-configuration:

sip-configuration has user iad2431b (per Section-Name), the Cisco sends 2441 (first error)
Second error is the register trying with user 2446 from the Cisco-IAD which is unknown in Your posted sip-configuration (if itÄs incomplete here, check the passwords)