Fax Line - Can send but not recieve

[Bondojordo]

Howdy!

I have a basic centrex line (with no special features) that was hooked up to a fax device.
Its recently been placed on a Xerox machine.

Currently, it is unable to receive faxes. It can send, just not receive.

I have tested the phone line, along with AT&T, and both have verified the line in perfect working condition. We can call it, it rings, we can dial our test sets, etc, the voltage has been approved as the right level. I even had AT&T move the line to a new binding post and I re-terminated all the connections.
Issue still not resolved.

Had Xerox tech verify the device it is on, and found no issues.

Last odd thing, when we dial the fax number from a phone, we can hear the handshake at the device.
But when we dial from a fax machine, (any fax machine) there is no handshake on the receiving end.

Any help would be greatly appreciated,
Thanks!

 

[vtphoneguy]

Try testing the line with another fax machine if possible.

 

[Bondojordo]

@vtphoneguy - Yes, I have done that with a Brothers All in one fax machine, and I still get the same issue

 

[jrgood0852]

See if this thread helps. It is in same category, just down a bit.........

http://tek-tips.com/viewthread.cfm?qid=1735378

Always look out for the next tech. because one day it will be you!

 

[Bondojordo]

@jrgood0852 thanks!
Unfortunately, that did not help.
I have tried faxing to the device with the issue, from multiple lines all in the same area code.

 

[1a22ip]

I have run into this a few years back and found a setting on the Fax Machine along the lines of manual receive. If this is set to yes the user has to accept the inbound fax. Go through your settings to see if you have this setting and it is turned off.

Worth a shot.

Hope this helps
ED

1a2 to ip I seen it all

 

[mforrence]

It SOUNDS like there is a SIP trunk involved, and the carrier is trying to reinvite and it is failing. That would explain why it "works" when calling from regular phone, but not from a fax machine. Something along the way hears the CNG tone and performs a reinvite to change codec to 711 or something.

 

[Bondojordo]

@1a22ip - Thanks, I will check that setting. I am pretty sure it is turned off, as I did find that and made sure it was off. But I will double check.

@mforrence - We have no SIP trunks here. That number is just a plain Centrex copper line coming in from AT&T and punched down directly to a jack location for the device. We do have a VOIP system here, but its DID's and completely separate from the fax line.

 

[Dexman]

Is there an alarm system of some kind sharing the fax line

I "FEATURE 00"

http://dexman.webs.com/

 

[Bondojordo]

@dexman - no, it is a completely stand alone line

 

[Dexman]

Ah...ok! [Bigsmile]

Back to the delivery method...is the line pure POTs from start to finish...or...does at&t do some sort of conversion (such as a D4 channelbank) somewhere along the way

I didn't check the supplied link, but, if you connect the machine to any other copper line, does the problem follow the machine

I "FEATURE 00"

http://dexman.webs.com/

 

[jrgood0852]

On a side note, Dex....that was a great install you did for your church.

Always look out for the next tech. because one day it will be you!

 

[Bondojordo]

All,

I tried a differently telephone line and installed it at the device. a different line worked.
not sure what the real issue here, but I at a point where I have no choice but to deactivate the original line and order a new one.
The original line is a centrex line, which shouldn't have an issue, but I am switching over to a 1mb.

 

[Dexman]

Hopefully the new line will resolve this once and for all.

Thank you jrgood0852 for the compliment! [Bigsmile]

I "FEATURE 00"

http://dexman.webs.com/