You’d figure it wouldn’t be hard to write some HTML function to read the MAC address and do the above operation. There’s no mention of the secondary MAC address anywhere on the web interface. Then you can start calling or faxing it to your heart’s content. Once you’ve completed the necessary steps to create the new device, it will register with the DN you’ve assigned to it. Once you’ve completed those steps, take the MAC address you’ve just created and plug it into CUCM as a new ATA device. Append “01” to the end of the 10-digit address. Drop the first two digits from the MAC address. Cisco uses a standard method to create a new MAC address:ġ. If you want to use the second port, you’re going to have to do a little bit of disassembly. On an ATA, the primary MAC address printed on the bottom or the side of the box is the address for the first port.
#How to find your cisco mac address how to
If there are two analog ports but only one Ethernet port, how to I configure the MAC address for the second port? All phone devices in CUCM must be identified by MAC address. This is where the interesting part comes in to play. The ATA 186 of the past and its current replacement, the ATA 187, both have 2 analog ports on the back. However, if you have a multitude of analog devices that you need to connect, you might opt to use the second analog port on the ATA. The configuration of the ATA is fairly straightforward under any CUCM system. The ATA allows you to connect an analog device to the unit, whether it be a fax machine or a cordless analog phone or even a fire alarm or postage machine. In the case of the Cisco VoIP systems, that means relying on the Analog Terminal Adapter, or ATA. However, there are times when I don’t have that luxury. Normally, I leave the fax connections and their POTS lines intact without touching anything.
Fax machines seem to be the most important device connected to a phone system. Never mind email or Dropbox or even carrier pigeon. Yes, even in this day and age we still need to rely on the tried-and-true facsimile machine to send photostatic copies of documents across the PSTN to a waiting party. The more common offender of this is the lowly fax machine. As much as we might want to transition everything over to digital IP phones and soft clients, the fact remains that there are some analog devices that still need connectivity on a new phone system. In the world of voice, not everything is wine and roses.
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