We only give 503's for destinations not in route. If the term provider gives us a 404 we pass that along. -----Original Message----- From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf Of Alex Balashov Sent: Wednesday, October 21, 2015 12:47 PM To: James Milko Cc: VoiceOps Subject: Re: [VoiceOps] Disconnected numbers and SIP Can't a 404 sometimes be taken as evidence that an intermediate network element (e.g. a wholesale provider's LCR) doesn't have the destination in route? Or do they just return the all-encompassing 503 in those cases? ? -- Alex?Balashov?|?Principal?|?Evariste?Systems?LLC 303?Perimeter?Center?North,?Suite?300 Atlanta,?GA?30346 United?States Tel:?+1-800-250-5920?(toll-free)?/?+1-678-954-0671 (direct) Web:?http://www.evaristesys.com/, http://www.csrpswitch.com/ Sent?from?my?BlackBerry. ? Original Message ? From: James Milko Sent: Wednesday, October 21, 2015 13:43 To: Alex Balashov Cc: Paul Timmins; VoiceOps Subject: Re: [VoiceOps] Disconnected numbers and SIP _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops