[cisco-voip] SIP analog gateways

[Ryan Huff]

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" <nhaas at co.fresno.ca.us>
Sent: Wednesday, August 19, 2015 10:31 AM
To: 'Daniel Pagan' <dpagan at fidelus.com>,"'norm.nicholson at kitchener.ca'" <norm.nicholson at kitchener.ca>,"'cisco-voip at puck.nether.net'" <cisco-voip at 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-bounces at puck.nether.net] On Behalf Of Daniel Pagan
>Sent: Wednesday, August 19, 2015 5:52 AM
>To: norm.nicholson at kitchener.ca; cisco-voip at 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-bounces at puck.nether.net] On Behalf Of norm.nicholson at kitchener.ca<mailto:norm.nicholson at kitchener.ca>
>Sent: Tuesday, August 18, 2015 7:10 PM
>To: cisco-voip at puck.nether.net<mailto:cisco-voip at 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
>
>
>
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