By Brad Reese, Network World |

How to configure the second line on the Cisco ATA 186

The Cisco Analog Telephone Adaptor (ATA) 186 is a handset-to-Ethernet adaptor that interfaces regular analog phones with IP-based telephony networks. The Cisco ATA 186 has two voice ports that were designed to support legacy analog touch-tone telephones. In order to configure the second line or port, you need to drop the two left-most digits from the Cisco ATA MAC address and add the digits 01 to the right-most portion of the MAC address in order to fabricate a MAC address for the Phone 2 port. This is an example: If the MAC address of the Cisco ATA is 00070EA26032 Then the fabricated MAC address for the Phone 2 port is 070EA2603201 For more detailed information, refer to Step 7 in the: Manual Configuration of Cisco CallManager 3.0, 3.1, 3.2, or 3.3 to Recognize the ATA 186 Additionally, refer to: Configure the ATA 186 For even more information on the Cisco ATA 186 refer to: Configuring and Troubleshooting an ATA 186 with a Cisco IOS Gateway and Configuring and Troubleshooting an ATA 186 with Cisco IOS Gatekeepers

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Brad Reese is research manager at BradReese.Com, advancing the careers of 600,000-plus certified individuals in the growing Cisco Career Certification Program.