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Joined: Apr 2004
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I work for a service provider and am trying to assist a vendor in settings for a PRI system. The faxes run off of an 8 port single line card, and the software version is version 5.2f0. The service is running clean out to the PBX, so I am looking for suggestions on specific settings to improve faxing over the circuit, I am pretty certain this will need to be done for the line card. In the past I have been able to back off the gain in the inbound and outbound transmissions and it has helped, does anyone know for certain whether that would be an option here? Voice service is working fine at this time. Fax symptoms are mostly garbled faxes or pages missing from faxes. Are there any know issues with these cards on their d/a converters that would affect the faxing?
Thanks.
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Joined: Apr 2003
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Hi -
It sounds like you have fax modems connected to SLC ports.
On my system, we had problems connecting modems to SLC-16 ports.
We were instructed to add a 150 ohm resister on each side of the cable pair.
For us there was an issue with both the SLC card and the modem tring to control the current on the circuit.
The extra resistance solved the issue.
Good Luck,
Russ
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Joined: Apr 2004
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they aren't using fax modems, just regular fax machines, and they are connected to a 8 port slc card. The troubles don't seem to affect them when on robbed bit T1 but only over the PRI <font face="Verdana, Arial" size="2">Originally posted by rivers17:
I work for a service provider and am trying to assist a vendor in settings for a PRI system. The faxes run off of an 8 port single line card, and the software version is version 5.2f0. The service is running clean out to the PBX, so I am looking for suggestions on specific settings to improve faxing over the circuit, I am pretty certain this will need to be done for the line card. In the past I have been able to back off the gain in the inbound and outbound transmissions and it has helped, does anyone know for certain whether that would be an option here? Voice service is working fine at this time. Fax symptoms are mostly garbled faxes or pages missing from faxes. Are there any know issues with these cards on their d/a converters that would affect the faxing?
Thanks.</font>
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