Cause 28 indicates "Invalid number format".
Joe Carroll wrote:
> See below, we replaced the area code and prefix of with NPANXX for
> concerns....
>
> Interestingly enough, on the syslog messages from the TNT we are seeing
> "Called = 911, Q850 Cause = 28, SIP Response = 484"
>
>
> Extension Changed NPANXX7604 new state InUse for Notify User NPANXX7555
> -- Executing [EMAIL PROTECTED]:1] Set("SIP/NPANXX7604-08c46518",
> "CALLERID(number)=NPANXX3551") in new stack
> -- Executing [EMAIL PROTECTED]:2] Dial("SIP/NPANXX7604-08c46518",
> "SIP/To-TNT/3100911") in new stack
> -- Called To-TNT/3100911
> Really destroying SIP dialog '[EMAIL PROTECTED]' Method: NOTIFY
> -- Got SIP response 484 "Address Incomplete" back from 172.16.10.230
> == Everyone is busy/congested at this time (1:0/0/1)
> == Auto fallthrough, channel 'SIP/NPANXX7604-08c46518' status is
> 'CHANUNAVAIL'
> -- Executing [EMAIL PROTECTED]:1] Set("SIP/NPANXX7604-08c46518",
> "CDR(userfield)=") in new stack
> Extension Changed NXX5557604 new state Idle for Notify User NXX5557555
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mik Cheez
> Sent: Wednesday, June 04, 2008 11:39 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [asterisk-users] 911 via MAX TNT ??
>
> The first place you may want to look is in the SYSLOG of the TNT,
> allowing you to see things such as the ISDN error code along with the
> SIP code. You can try to catch that on the terminal of the TNT, but it
> may make more sense to pipe your syslogs out to an external box, if you
> aren't doing it already.
>
> JR's suggestion that it may be a limit of the trunk you're using.
>
>
>
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