On a Friday night no less. On Fri, Oct 4, 2019 at 10:08 PM Ryan Huff <ryanh...@outlook.com> wrote:
> Come on... we are geeks here.... we are going to run this down every > possible avenue regardless :) > > Sent from my iPhone > > On Oct 4, 2019, at 23:06, Anthony Holloway < > avholloway+cisco-v...@gmail.com> wrote: > > > I think Lelio was wondering about a pure cloud registered device, and then > simply purchasing a vanity domain to overlay on top of the ugly webex one. > > You know....like URL shortening > <https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fblog.rebrandly.com%2Fthe-history-of-url-shorteners%2F&data=02%7C01%7C%7C4df4b81e7de446bcd2fa08d749410008%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637058415823445677&sdata=BK7X5LPEj%2FERkvJhhoKkxhGYbUFaMYDYuHIE3rjPGsE%3D&reserved=0> > . > > On Fri, Oct 4, 2019 at 9:57 PM NateCCIE <natec...@gmail.com> wrote: > >> Doesn’t cucm have the ability to look at the user portion of the URI >> only? For like when you’re routing to a DN? Or I think you can add the >> short domain to the list of the CUCM “owned” domains in enterprise >> parameters. >> >> >> >> *From:* Ryan Huff <ryanh...@outlook.com> >> *Sent:* Friday, October 4, 2019 8:51 PM >> *To:* NateCCIE <natec...@gmail.com> >> *Cc:* Lelio Fulgenzi <le...@uoguelph.ca>; cisco-voip voyp list < >> cisco-voip@puck.nether.net> >> *Subject:* Re: [cisco-voip] SIP Domain substitution >> >> >> >> Hey Nate ... the original ask I think, was to do it all with DNS only and >> no intervention at layer 4, which to my knowledge, DNS alone couldn’t do. >> >> >> >> Expressway search rule, CUCM LUA script... etc could all do it in reality. >> >> >> >> However, the actual goal appears to be dialing a Webex cloud registered >> codec, using a non cloud uri (...@rooms.webex.com), and for that Webex >> Hybrid calling with Expressway B2B would get you there, and also checks the >> “no additional transformation needed” box. >> >> >> >> Sent from my iPhone >> >> >> >> On Oct 4, 2019, at 22:41, NateCCIE <natec...@gmail.com> wrote: >> >> I am not thinking right? Can’t a dns srv get the call routed to a >> specific host? Then a quick expressway transform to change the domain, and >> you’re done. >> >> >> >> Think of it as a different internal domain va external domain. >> >> >> >> f...@company.com does goes to expressway.companyinfrastructuredomain.com >> <https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fexpressway.companyinfrastructuredomain.com&data=02%7C01%7C%7C4df4b81e7de446bcd2fa08d749410008%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637058415823445677&sdata=26dr97QxoCEhEb11y0lmKT7btioRrDIgcTh7f0lpp%2FQ%3D&reserved=0> >> which does a quick trans to foo@internal.local >> >> >> >> >> >> Sent from my iPhone >> >> >> >> On Oct 4, 2019, at 8:36 PM, Lelio Fulgenzi <le...@uoguelph.ca> wrote: >> >> >> >> >> >> Interesting. I’ll have to look into that. Thx. >> >> *-sent from mobile device-* >> >> >> >> *Lelio Fulgenzi, B.A.* | Senior Analyst >> >> Computing and Communications Services | University of Guelph >> >> Room 037 Animal Science & Nutrition Bldg | 50 Stone Rd E | Guelph, ON | >> N1G 2W1 >> >> 519-824-4120 Ext. 56354 <519-824-4120;56354> | le...@uoguelph.ca >> >> >> >> www.uoguelph.ca/ccs >> <https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.uoguelph.ca%2Fccs&data=02%7C01%7C%7C4df4b81e7de446bcd2fa08d749410008%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637058415823455686&sdata=6OmIEsttbas7XV2w7vZ6PFeC7tYVDLvVx%2FTGUFyxjbE%3D&reserved=0> >> | >> @UofGCCS on Instagram, Twitter and Facebook >> >> >> >> [image: University of Guelph Cornerstone with Improve Life tagline] >> >> >> On Oct 4, 2019, at 10:32 PM, Ryan Huff <ryanh...@outlook.com> wrote: >> >> Webex Hybrid Calling (with Expressway B2B), could in theory, help >> accomplish this. The codec is still cloud registered, though Hybrid calling >> would allow for an on-prem URI to be associated with the Webex remote >> destination of the codec. >> >> >> >> The call would come into the on-prem URI via B2B like normal, and >> assuming the Hybrid integration was setup correctly, ring the Webex remote >> destination which rings the cloud registered codec. >> >> >> >> It’s a little bit of an ugly trombone, but it does work.. >> >> >> >> Sent from my iPhone >> >> >> >> On Oct 4, 2019, at 22:09, Lelio Fulgenzi <le...@uoguelph.ca> wrote: >> >> >> >> >> >> Darn. Double darn. >> >> >> >> Let’s hope webex offers up custom domain registration for devices soon. >> >> >> >> ‘Cause room...@acme.rooms.webex.com is a bit much. >> >> *-sent from mobile device-* >> >> >> >> *Lelio Fulgenzi, B.A.* | Senior Analyst >> >> Computing and Communications Services | University of Guelph >> >> Room 037 Animal Science & Nutrition Bldg | 50 Stone Rd E | Guelph, ON | >> N1G 2W1 >> >> 519-824-4120 Ext. 56354 <519-824-4120;56354> | le...@uoguelph.ca >> >> >> >> www.uoguelph.ca/ccs >> <https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.uoguelph.ca%2Fccs&data=02%7C01%7C%7C4df4b81e7de446bcd2fa08d749410008%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637058415823455686&sdata=6OmIEsttbas7XV2w7vZ6PFeC7tYVDLvVx%2FTGUFyxjbE%3D&reserved=0> >> | >> @UofGCCS on Instagram, Twitter and Facebook >> >> >> >> [image: University of Guelph Cornerstone with Improve Life tagline] >> >> >> On Oct 4, 2019, at 9:05 PM, Ryan Huff <ryanh...@outlook.com> wrote: >> >> What it sounds like you are trying to do to me, is allow the call to >> ultimately setup with a URI different than the URI that was dialed, without >> the calling party being the wiser. >> >> >> >> DNS won’t be able to do anything with regards to that I don’t think, >> because it really sounds like you’re trying to manipulate/transform the >> called URI, and you’ll need something to interact with the SIP message >> stack for that I’d think. >> >> >> >> You can create a round robin A record, that resolves to multiple IP >> addresses, so when the client looks up the DNS SRV, it receives multiple >> targets to try before considering the SRV target “unreachable” (SRV weights >> and priorities determine the ordering of the target addresses resolved for >> the client). However, this won’t have the ability to change the called URI, >> which is ultimately what I think you’re attempting in the scenario (DNS and >> SIP messages are on different networking layers). >> >> >> >> As Dave mentioned below, Expressway or a LUA script (sip normalization) >> in CUCM seems to be uniquely qualified for what you’re wanting to do. >> >> Sent from my iPhone >> >> >> >> On Oct 4, 2019, at 20:40, Lelio Fulgenzi <le...@uoguelph.ca> wrote: >> >> >> >> >> >> I’ve seen some references to Cisco SIP proxy server. >> >> >> >> Would that help? >> >> *-sent from mobile device-* >> >> >> >> *Lelio Fulgenzi, B.A.* | Senior Analyst >> >> Computing and Communications Services | University of Guelph >> >> Room 037 Animal Science & Nutrition Bldg | 50 Stone Rd E | Guelph, ON | >> N1G 2W1 >> >> 519-824-4120 Ext. 56354 <519-824-4120;56354> | le...@uoguelph.ca >> >> >> >> www.uoguelph.ca/ccs >> <https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.uoguelph.ca%2Fccs&data=02%7C01%7C%7C4df4b81e7de446bcd2fa08d749410008%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637058415823465691&sdata=ryzes%2BdGBEOYvqvcqvqpF8bWLLtG5xgcWZN6qmnL2EQ%3D&reserved=0> >> | >> @UofGCCS on Instagram, Twitter and Facebook >> >> >> >> [image: University of Guelph Cornerstone with Improve Life tagline] >> >> >> On Oct 4, 2019, at 7:46 PM, Ryan Huff <ryanh...@outlook.com> wrote: >> >> According to RFC 2782 (https://www.ietf.org/rfc/rfc2782.txt >> <https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Frfc%2Frfc2782.txt&data=02%7C01%7C%7C4df4b81e7de446bcd2fa08d749410008%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637058415823465691&sdata=zws9PuMtkFDedn98xKfGYn9EI0chKJMcR4G%2FGcpJePc%3D&reserved=0>), >> it does not, under the “Target Definition”; “there must be one or more >> address records for this name, the name must not be an alias”. >> >> >> >> However, I can tell you that I have used a CNAME in the SRV target field >> before, and it appeared to work at the time. Still, depending on the >> application, doing so could potentially cause some weird issue with regards >> to PTR or something. >> >> >> >> Sent from my iPhone >> >> >> >> On Oct 4, 2019, at 19:10, Brian Meade <bmead...@vt.edu> wrote: >> >> >> >> I don't think DNS SRV records support CNAME. Even then, it would only >> change where it was sent to and not the SIP headers. >> >> >> >> On Fri, Oct 4, 2019 at 12:26 PM Lelio Fulgenzi <le...@uoguelph.ca> wrote: >> >> Yeah – I’d want this to happen all within DNS. But of course, in a >> supported fashion. I’m not interested in spending time modifying >> infrastructure at this time. >> >> >> >> I’ve done some searching, and there’s talk of RR records, but we haven’t >> found much documentation. >> >> >> >> >> >> --- >> >> *Lelio Fulgenzi, B.A.* | Senior Analyst >> >> Computing and Communications Services | University of Guelph >> >> Room 037 Animal Science & Nutrition Bldg | 50 Stone Rd E | Guelph, ON | >> N1G 2W1 >> >> 519-824-4120 Ext. 56354 | le...@uoguelph.ca >> >> >> >> www.uoguelph.ca/ccs >> <https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.uoguelph.ca%2Fccs&data=02%7C01%7C%7C4df4b81e7de446bcd2fa08d749410008%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637058415823475701&sdata=DdBdytu3ONg9rnh6m4f7%2B7l88QEl%2BxPdIX6vpivkehY%3D&reserved=0> >> | @UofGCCS on Instagram, Twitter and Facebook >> >> >> >> <image001.png> >> >> >> >> *From:* Dave Goodwin <dave.good...@december.net> >> *Sent:* Friday, October 4, 2019 12:09 PM >> *To:* Lelio Fulgenzi <le...@uoguelph.ca> >> *Cc:* cisco-voip voyp list <cisco-voip@puck.nether.net> >> *Subject:* Re: [cisco-voip] SIP Domain substitution >> >> >> >> Are you wanting this to all happen within DNS instead of happening within >> a SIP UA? As far as I understand, if DNS redirected somewhere (SRV or CNAME >> record for example) it would not change the destination URI the originator >> is trying to reach. The SIP protocol has redirection codes (such as 301 or >> 302) but whether or how you might be able to use them depends on the SIP >> UAs being used. >> >> >> >> You might also be able to use something like a SIP normalization script >> (CUCM), SIP profiles (CUBE), or maybe search pattern replacements >> (Expressway) to just translate the domain as calls flow in/out. I'm >> guessing what might be feasible without knowing more of the picture. >> >> >> >> On Fri, Oct 4, 2019 at 11:10 AM Lelio Fulgenzi <le...@uoguelph.ca> wrote: >> >> >> >> Does SIP allow for domain name substitution? >> >> >> >> By this I mean, instead of advertising or dialing >> coy...@phones.america.acmemanufacturing.com I want to use coy...@zing.com >> >> >> >> But I don’t want to have to reorganize and reprogram anything. >> >> >> >> I just want the DNS to say, “hey, use this domain instead and try again.” >> >> *-sent from mobile device-* >> >> >> >> *Lelio Fulgenzi, B.A.* | Senior Analyst >> >> Computing and Communications Services | University of Guelph >> >> Room 037 Animal Science & Nutrition Bldg | 50 Stone Rd E | Guelph, ON | >> N1G 2W1 >> >> 519-824-4120 Ext. 56354 <519-824-4120;56354> | le...@uoguelph.ca >> >> >> >> www.uoguelph.ca/ccs >> <https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.uoguelph.ca%2Fccs&data=02%7C01%7C%7C4df4b81e7de446bcd2fa08d749410008%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637058415823475701&sdata=DdBdytu3ONg9rnh6m4f7%2B7l88QEl%2BxPdIX6vpivkehY%3D&reserved=0> >> | >> @UofGCCS on Instagram, Twitter and Facebook >> >> >> >> _______________________________________________ >> cisco-voip mailing list >> cisco-voip@puck.nether.net >> https://puck.nether.net/mailman/listinfo/cisco-voip >> <https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpuck.nether.net%2Fmailman%2Flistinfo%2Fcisco-voip&data=02%7C01%7C%7C4df4b81e7de446bcd2fa08d749410008%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637058415823485705&sdata=akd%2Fcj6oU1IthlpiE5p8JPlYo1XZxHJeXyYf2WdTxd8%3D&reserved=0> >> >> _______________________________________________ >> cisco-voip mailing list >> cisco-voip@puck.nether.net >> https://puck.nether.net/mailman/listinfo/cisco-voip >> <https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpuck.nether.net%2Fmailman%2Flistinfo%2Fcisco-voip&data=02%7C01%7C%7C4df4b81e7de446bcd2fa08d749410008%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637058415823485705&sdata=akd%2Fcj6oU1IthlpiE5p8JPlYo1XZxHJeXyYf2WdTxd8%3D&reserved=0> >> >> _______________________________________________ >> cisco-voip mailing list >> cisco-voip@puck.nether.net >> >> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpuck.nether.net%2Fmailman%2Flistinfo%2Fcisco-voip&data=02%7C01%7C%7C8490bfb695e94274db6d08d7491ffa5a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637058274001837045&sdata=zfbMgSZMo1JkN8aVUEQ0s%2B18Hgsoa9887UvQ3z1v6rw%3D&reserved=0 >> <https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpuck.nether.net%2Fmailman%2Flistinfo%2Fcisco-voip&data=02%7C01%7C%7C4df4b81e7de446bcd2fa08d749410008%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637058415823495715&sdata=cFlfENvdBQB1fqunCV4bZsf4W0o%2FG7Ymvp3mRd845cA%3D&reserved=0> >> >> _______________________________________________ >> cisco-voip mailing list >> cisco-voip@puck.nether.net >> https://puck.nether.net/mailman/listinfo/cisco-voip >> <https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpuck.nether.net%2Fmailman%2Flistinfo%2Fcisco-voip&data=02%7C01%7C%7C4df4b81e7de446bcd2fa08d749410008%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637058415823505720&sdata=LFfWClishX1TQjbyFtVNfmG9Qz3QF7pBOGhKSKkm%2FOs%3D&reserved=0> >> >> _______________________________________________ >> cisco-voip mailing list >> cisco-voip@puck.nether.net >> https://puck.nether.net/mailman/listinfo/cisco-voip >> <https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpuck.nether.net%2Fmailman%2Flistinfo%2Fcisco-voip&data=02%7C01%7C%7C4df4b81e7de446bcd2fa08d749410008%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637058415823505720&sdata=LFfWClishX1TQjbyFtVNfmG9Qz3QF7pBOGhKSKkm%2FOs%3D&reserved=0> >> >
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