More and more customers changing their PBX systems from analog or ISDN to VoIP-based PBX systems.
Due to the general incompatibility of fax and VoIP,certain settings may not work. The problem is not caused by the Fax Unit, but is caused by:
the general design of VoIP using TCP/IP Packets
VoIP PBX systems
the general specification of VoIP and it's
* Codecs
* Coding an decoding timings
* Fax fixed timings
* LAN Packet losses
* Quality of Services
* ITU/RFC Specification implementation
* Bugs
* Interpretation of technical terms within the specifications of the ITU-T and RFC documents.
VoIP is still not supported officially by Konica Minolta, but may work in some instances.
Performing these suggested settings may solve the problem.Follow the operation made step-by-step:
From Service Mode
==> FAX Settings
==> Communication
==> Protocolset "ON" the "V.29 EP Tone" Protocol
and set "OFF" all other faster protocolls.
From Service Mode
==> FAX Settings
==> Communication
==> Others we have set "OFF" the "ECM Function"
From Service Mode
==> FAX Settings
==> Function Parameter
==> Address "0e0012 = 01111000
(Hex 78 = 120 sec)
(T1 Timer for Calling)
From Service Mode
==> FAX Settings
==> Function Parameter
==> Address "0e0013 = 01111000
(Hex 78 = 120 sec).
(T1 Timer for Called)
From Service Mode
==> System 2
==> Software Switch
==> SoftSwitch 21 Bit5=1
00100000
(HEX 20 = over 4.5 sec)
(T4 Waiting time between start Identification)
Notes:
a. Before performing the above mentioned settings it is recommended to upgrade the firmware to the latest version and to check if the FK-502 will have the
latest available version. The latest version firmware or system software is available via the Konica Minolta Download Selector. Access the Selector from SSD
Web Support (CS Expert Support) by clicking on 'Download MSDS, Drivers, Firmware and more'.
b.Expect more communication problems than on an ISDN or analog line (approximately 15% more).
Workaround :
If the aforementioned settings do not show an acceptable result,offer as alternative:
Unimessage Pro Fax Server Solution where Scan to E-mail with auto prefix-suffix setting is used (depending on the machine Series - prefix-suffix will be
added automatically or can be selected manually).
RightFax Server with "Setup Utility for RightFax" using OpenAPI.