07-07-2020 11:04 AM
HP2840 FAX stopped after switch from Verizon to Atlantic Broadband cable telephone. Two phone lines, one for office phone and one dedicated FAX. Both phone lines working. Settings FAX on HP2840 check out. Out going FAX calls out, connects, but no "hand shake." In coming FAX, rings, picks up. but no "hand shake."
No other changes to FAX except change to ABB.
07-09-2020 02:28 PM
Thank you for posting on HP Support Community.
Don't worry as I'll be glad to help, I have a few troubleshooting steps we could try to fix the issue:
Sending and receiving of data through the serial fax modem can only occur during an active fax session. A fax session can only be established between two fax modems that successfully negotiate common capabilities such as fax resolution, transmission speed, compression, and format.
Fax negotiation and communication uses the T.30 protocol, which is restricted to fax communications. A fax session cannot be negotiated for anything other than a fax transfer, so it is not possible for other components in or out of the system to use the modem for transferring data other than fax data.
Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
I am an HP Employee
07-13-2020 11:26 AM
The reply I received is not helpful. I do not understand it and frankly, it sounds like double talk.
I need to find our why my HP2840 FAX picked up with Verizon as the phone carrier, but now that I have Atlantic Broadband as the carrier, it will not pick up, The incoming phone line is working correctly. My HP2840 seems unable to go to the FAX "handshake" when there is an incoming FAX.
I have reviewed all the FAX set up settings and they are correct.
Thank you for your assistance.
07-15-2020 09:18 AM
Thank you for posting back.
I would request you to contact our Support and our Support Engineers should be able to sort this out. HP Support can be reached by clicking on the following link: www.hp.com/contacthp/
Please feel free to contact us here anytime you need any further assistance. Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
I am an HP Employee