asterisk users - Nov 2003 - Can't seem to connect/call fwd network Help!

I have tried everything and still can't place / receive calls from the fwd
network.  At one point today I was able to call my test machine on the fwd
network, I'd answer the call on the test machine (which stated Call
Connected), but then the computer I was calling from, through the Asterisk
server would give me a 403 Error.  I am using sjphone software.  I am able to
call various extensions with in my network that are setup on the Asterisk
server.  I can leave and check voice mail with no problem.  I just can't
seem to connect to anyone outside my network.  Below are the error's I
received in Asterisk and also my conf files.
Any help at all would be GREATLY appreciated!


Thanks Dan-



Asterisk Prompt error-

-- Got SIP response 481 "Subscription does not exist" back from
192.168.0.105
-- Executing Dial("SIP/78695-eace",
"SIP/85511@fwd.pulver.com") in new stack
-- Called 85511@fwd.pulver.com
  == No one is available to answer at this time



; SIP Configuration for Asterisk

[general]
port = 5060                          ; Port to bind to
bindaddr = 0.0.0.0                      ; Address to bind to
;externip = 200.201.202.203         ; Address that we're going to put in SIP
messages if we're behind a NAT
context = sip                    ; Default for incoming calls
;srvlookup = yes                     ; Enable SRV lookups on outbound calls
;pedantic = yes                         ; Enable slow, pedantic checking for
Pingtel
;tos=lowdelay
;tos=184
;maxexpirey=3600                     ; Max length of incoming registration we
allow
;defaultexpirey=120                  ; Default length of incoming/outoing
registration
;notifymimetype=text/plain             ; Allow overriding of mime type in NOTIFY
;videosupport=yes                    ; Turn on support for SIP video
;disallow=all                          ; Disallow all codecs
;allow=ulaw                             ; Allow codecs in order of preference
;allow=ilbc
allow=all

[fwd.pulver.com]
type=friend
secret=mypassword
username=myfwd#
host=fwd.pulver.com

[myfwd#]
type=friend
host=dynamic
dtfmode=inband ; Choices are inband,rcf2833, or info
context=sip
username= myfwd#
secret=mypassword
mailbox=100 ; Mailbox for message waiting indicator
callid="Red " <myfwd#>
register =>myfwd#:mypassword @fwd.pulver.com/100


[my2ndfwd#]
type=friend
host=dynamic
username=my2ndfwd#
secret=mypassword
dtmfmode=inband
mailbox=101
context=sip
callid="Red2 " <my2ndfwd#>
register => my2ndfwd#:mypassword@fwd.pulver.com/101



Bottom of extensions.conf file

[sip]
exten => 1,1,Dial(SIP/myfwd#,20,tr)
exten => 2,1,Dial(SIP/ my2ndfwd#,20,tr)
exten => 100,1,Dial(SIP/ myfwd#,20,tr)
exten => 101,1,Dial(SIP/my2ndfwd#,20,tr)
exten => 100,2,VoiceMail,u100
exten => 101,2,VoiceMail,u101
exten => 100,102,VoiceMail,b100
exten => 101,102,VoiceMail,b101
exten => 1001,1,Ringing
exten => 1001,2,Wait(2)
exten => 1001,3,VoicemailMain
include => fwd

[fwd]
exten => _8.,1,Dial,SIP/${EXTEN-1}@fwd.pulver.com,tr