[asterisk-users] Anyone have any experience with inbound SIP trunks from Simwood?

[A J Stiles]

I'm trying -- unsuccessfully! -- to configure an inbound trunk with Simwood, 
and I was hoping someone on this list might have managed to do this.

I have configured some numbers to route to a SIP endpoint
  %e164 at customer's server
and convinced the customer to open up UDP ports 5060 and 10000 - 20000.

Calling the number gets a SIP request from Simwood.  The customer's machine 
then sends a SIP 401 response.  Simwood send an ACK .....  and then nothing.  
Nothing appears in the Asterisk CLI; to get the SIP trace I used the command

# ngrep -t -q -n -q -Wbyline -deth0 1283 port 5060

(note that 1283 = the STD code from which the call is originating, so it 
should show up in any related packets.)


##########  sip.conf  ##########
[simwood_in_slough]
type=friend
host=178.22.140.34
fromdomain=178.22.140.34
permit=178.22.140.34/255.255.255.255
qualify=no
context=from-simwood
dtmfmode=rfc2833
insecure=invite,port
disallow=all
allow=alaw
nat=yes
directmedia=no

##########  extensions.conf  ##########
[from-simwood]
extension => s,1,NoOp(Call via Simwood form '${CALLERID(num)}' to '${EXTEN}')
extension => s,n,Hangup()


-- 
AJS

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