asterisk users - Apr 2004 - Firefly Client can't receive incoming calls

I'm having a problem configuring asterisk to send incoming calls to
Firefly.    I can make outgoing calls from firefly through asterisk
without any problems at all.  The firefly client does this when it's on
the same IP subnet without a firewall, or from a NAT'd environment.  Can
anyone tell me where I'm going wrong?

Here is output from iax2 show peers:

Name/Username    Host                 Mask             Port      Status
ken-1202/ken-12  63.140.250.98   (D)  255.255.255.255  53618     UNREACHABLE


Here are what I think are the relevant parts of my config:

iax.conf
------------------------------------

[ken-1202]
type=friend
host=dynamic
username=ken-1202
secret=XXXXXXX
mailbox=1202
permit=0.0.0.0/0.0.0.0
context=default
qualify=1000
------------------------------------

extensions.conf
------------------------------------
[iax]
exten => 1202,1,Dial(IAX2/ken-1202@ken-1202,20)
exten => 1202,2,Voicemail,u${EXTEN}
exten => 1202,102,Voicemail,b${EXTEN}

-- 
Ken DeMaria
ken@demaria.net

Ken DeMaria wrote:
>I'm having a problem configuring asterisk to send incoming calls to
>Firefly.    I can make outgoing calls from firefly through asterisk
>without any problems at all.  The firefly client does this when it's on
>the same IP subnet without a firewall, or from a NAT'd environment.  Can
>anyone tell me where I'm going wrong?
>
>
>  
>
do a "iax2 debug" - should help you diagnose the issue