credit card machine via IP networking

[brewski6666]

Cluster of two 3300 (MCD 4.1)
The controller A is equipped with a PRI
The controller B is networked (via IP Networking) to the controller A.
Outgoing calls from controller B are made via the PRI on controller B.
The customer has two credit card machines on site B; he wants to connect them to ONS ports,
From your experience, do you think that for this setup to work I need T38 licenses (because of the IP networking) or it should work without adding any license.

 

[LoopyLou]

If you have a PRI on controller B for outgoing and the credit card machines are on controller B, then you would not need T38 licenses unless there will be inbound calls to the credit card machines via the PRI on controller A. ONS communications via a PRI on controller B is completely TDM, therefore no IP envolved and no need for T38. Any calls through controller A to/from the credit card machines will be UDP packets which is not reliable transport for important data.

Just me 2 cents

The single biggest problem with communications is the illusion that it has taken place.

 

[brewski6666]

there is no trunks on site B, all externel call are made via the PRI on site A. do i need T38 license in this case?

 

[dryaquaman]

This has been my experience:
Modems (HVAC, PBX Modems, CC Machines, TTY) may work across IP networks. Depends on the quality of the network. It's not supported by Mitel but we've had pretty good success.

For T.38, I've had sites with working modems that will not work once T.38 is turned on. Happened enough times we tell customer T.38 will (!!) break modems. Mitel's only response to our experience is "Modems are not supported across IP trunks". Even if it worked before T.38. No support beyond that.

Dry Aquaman

http://www.university-music-on-hold.com

 

[northportphoneguy]

My experience has been that modems and CC readers will not work or, will work for awhile then fail over IP trunks. My failures include the mail machine in S&R that dials out to reload money, modems used by the local electric company for remote meter readings and CC readers. For the CC readers, the staff that used them either went with an online system or changed the reader to one that uses the internet.

 

[nytalkin]

I have had some success defining ip routes and turning compression off and successfully completed FAX calls. This only worked a couple of times but you might get lucky.

NO GOOD DEED GOES UNPUNISHED!

 

[northportphoneguy]

As an aside, I have found a T.38 fax from our facility to a fax machine that has line monitoring will not work. I cannot fax to our local auto repair vendor because he has his fax machine monitor his voice line. I think what happens is a voice answers and then his fax hears the ‘tone’ and seizes the line. But by that time the T.38 will not engage and the fax fails.

Boy do I long for the day of POTS lines and copper pairs. Must be time to retire.

 

[IrwinMFletcher]

Just to add to this thread. It depends on the software load for the most part. Older versions (pre T.38) did not check for any modem tones, so you are safe there. At that point it's mainly a matter of your network.

When T.38 was introduced, the system became smarter and recognized fax transmissions and did some things that some modems don't like, but make faxes work.