[cisco-voip] ATA 186 functionality across a wireless point to point connection

[Nick Matthews]

You can try enabling passthrough redundancy on the ATA.

This guide has the steps, and bit 7 should be 1 for "Fax method":

http://www.cisco.com/en/US/products/hw/gatecont/ps514/products_configuration_example09186a00800d698e.shtml#task1

You would want the PSTN gateway to also have modem passthrough with
redundancy enabled.


-nick

On Tue, Mar 2, 2010 at 10:33 AM, Go0se <me at go0se.com> wrote:
> Per the ATA data sheet is says it can “make use of existing Ethernet LANs,
> in addition to broadband pipes such as digital subscriber line (DSL), fixed
> wireless…” and it also states that it has a “dynamic jitter buffer”.
>
>
>
> However, if you look here:
>
>
>
> http://www.cisco.com.az/en/US/docs/voice_ip_comm/cata/186_188/2_15/english/administration/guide/sip/SIP88APG.html#wp1009476
>
>
>
> it says next to FAX G711 fax pass-through and G711 fax mode that “the
> network must have reasonably low network jitter, network delay, and
> packet-loss rate.” In my experience, wireless or not, faxing doesn’t handle
> any of the above network issues well at all.
>
>
>
> Thanks,
>
>
>
> Go0se
>
>
>
> My blog:
>
> http://atc.go0se.com
>
>
>
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>
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>
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>
> From: cisco-voip-bounces at puck.nether.net
> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Leetun, Rob
> Sent: Tuesday, March 02, 2010 8:58 AM
> To: cisco-voip at puck.nether.net
> Subject: [cisco-voip] ATA 186 functionality across a wireless point to point
> connection
>
>
>
> Hi,
>
>
>
> We are trying to make an ATA-186 connected to a fax machine work on a
> wireless point to point connection.  We are using the wireless system called
> Solotec.
>
>
>
> It appears that jitter or latency is an issue, where the fax machine makes
> the connection to the receiving fax machine but drops the connection mid
> stream.  Has anyone had any success with P-2-P wireless faxing with an
> ATA-186?
>
>
>
> Our wireless db is around -30, and voice and data communication is fine.
>
>
>
> Thoughts?
>
>
>
>
>
> Rob
>
>
>
> Robert Leetun
>
> Network Engineer
>
> Boulder County Information Technology
>
> 2025 14th Street
>
> Boulder, CO 80302
>
> 303 441-3866 (W)
>
> 303 441-3983 (F)
>
> rleetun at bouldercounty.org
>
>
>
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