6617480240 -> 6617480993: NEUTRAL TANDEM-CALIFORNIA, LLC - CA CA (OCN: 649C) NPAC SPID (ONSP): 505B 6617480240 -> SKYPE CALLER That's what I get via TNSi, who uses the legacy Verisign SS7 based CNAM system. I wonder if the SS7 provider providing that data uses TARGUSinfo. (Syniverse does, for example). They have this synthetic CNAM data that's really questionable sometimes.
-Paul On Mar 19, 2014, at 9:12 PM, Nathan Anderson <nath...@fsr.com> wrote: > Our CNAM lookup provider is sending us name data for one particular number > that includes a linefeed in it. It's possible that it's their mistake and > that this particular number's CNAM data doesn't actually have this character > in it, but it raises the question: is this a legal character? > > The number in question is a SkypeOut gateway: 661-748-0240 -- I'd be curious > to know what other people are seeing on a CNAM lookup for this. What we are > getting is "SKYPE USER\nSKYPE USER". And, actually, now that I think about > it, this can't possibly be the actual value since I believe CNAM is limited > to 15 characters. So I'll talk to our provider about this. (This is the > only number that we have seen anything like this with.) > > BTW, it turns out that when Asterisk sends an INVITE and the CALLERID(name) > value has been stuffed with a string that contains a newline, it decides to > send this in the headers: > > From: "SKYPE USER\ > SKYPE USER" <sip:6617480240@192.0.2.1> > > ...so it includes the linefeed (ASCII 10) in the string, but tries to escape > it with a '\' (which is not entirely unprecedented). An Asterisk box on the > receiving end of that INVITE, however, will completely ignore the INVITE...it > won't log an error and doesn't bother dignifying it with a response, probably > because it sees that as two separate lines (it doesn't concatenate two lines > that are separated by a '\') and the second line all by itself looks like > garbage/wouldn't make sense to a SIP dialog parser. > > -- > Nathan Anderson > First Step Internet, LLC > nath...@fsr.com > _______________________________________________ > VoiceOps mailing list > VoiceOps@voiceops.org > https://puck.nether.net/mailman/listinfo/voiceops _______________________________________________ VoiceOps mailing list VoiceOps@voiceops.org https://puck.nether.net/mailman/listinfo/voiceops
