My experince is that analog faxing over SIP is sometimes a dance. What I have found to work consistently is to disable SuperG3 and ECM on the fax modem and restrict the rx/tx of the modem to 14.4 Kbps.
Thanks, Ryan -------- Original Message -------- From: "Haas, Neal" <nh...@co.fresno.ca.us> Sent: Wednesday, August 19, 2015 10:31 AM To: 'Daniel Pagan' <dpa...@fidelus.com>,"'norm.nichol...@kitchener.ca'" <norm.nichol...@kitchener.ca>,"'cisco-voip@puck.nether.net'" <cisco-voip@puck.nether.net> Subject: Re: [cisco-voip] SIP analog gateways >We tried to put our faxes all on SIP, best solution was to move 200 DID's back >to PRI, sad day....... > >Thank you, >Neal Haas > > >From: cisco-voip [mailto:cisco-voip-boun...@puck.nether.net] On Behalf Of >Daniel Pagan >Sent: Wednesday, August 19, 2015 5:52 AM >To: norm.nichol...@kitchener.ca; cisco-voip@puck.nether.net >Subject: Re: [cisco-voip] SIP analog gateways > >I personally can't speak to 3rd party FXS gateways, but I've worked with >customers in the past whose VG224s were integrated w/ CUCM via SIP trunk. The >two caveats that immediately come to mind are applicable to a non-Cisco FXS >gateway using SIP as well: > > >1) Lack of SCCP supplementary services > >http://www.cisco.com/c/en/us/td/docs/ios/voice/fxs/configuration/guide/15_1/fxs_15_1_cg_book/fxssccpsplmft.html > >2) Unable to use shared line appearances between the VG2XX and non-VG2XX >device. > >Just two things to keep in mind. I've seen this sometimes act as a deal >breaker w/ SIP to the FXS gateway. Hope this helps in some way. > >- Dan > >From: cisco-voip [mailto:cisco-voip-boun...@puck.nether.net] On Behalf Of >norm.nichol...@kitchener.ca<mailto:norm.nichol...@kitchener.ca> >Sent: Tuesday, August 18, 2015 7:10 PM >To: cisco-voip@puck.nether.net<mailto:cisco-voip@puck.nether.net> >Subject: [cisco-voip] SIP analog gateways > > >Anyone using a SIP FXS gateway instead of a VG224. Just trying to compare >costs and ease of use. > >Thanks > > > >Norm Nicholson >Telecom Analyst >City of Kitchener >(519) 741-2200 x 7000 > > > >_______________________________________________ >cisco-voip mailing list >cisco-voip@puck.nether.net >https://puck.nether.net/mailman/listinfo/cisco-voip
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