@Brian

sres.c:2987 sres_query_report_error() sres(q=0x7f204c0a8a10): reporting error NAME_ERR for A  26.18.87.27
nua_stack.c:271 nua_stack_event() nua(0x7f20442a9c80): event r_invite 503 DNS Error

Got these suspicious lines from loglevel all 9

On Thu, Dec 8, 2016 at 9:23 PM, Brian West <brian@freeswitch.org> wrote:

Because FreeSWITCH is receiving an ICMP Unreachable.  run 'sofia loglevel all 9' and you'll see it.

On Thu, Dec 8, 2016 at 9:54 AM, devang nathwani <devang.nathwani31589@gmail.com> wrote:

Hello,

working one:
http://pastebin.com/ncyxUQj8

nonworking one with 503 service unavailable
http://pastebin.com/w7A689Bu

Here i have two scenarios, first is configured with Provider(1), this call routed and established successfully.

the second is configured with Provider(2), with this one freeswitch sending 503 event before routing the call to Provider(2)

so why 503?

- Devang.

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