This document describes some common configurations via the Web-Based Configuration Utility and a TFTP server. Provisioning is typically part of high-volume VoIP deployments thus most of the documentation focused on managing the phone via the call manager (Cisco Unified Communications Manager). I spent too much time upgrading the phone firmware 😞 Cisco does not include the required to upgrade the firmware nor identify that you'll not be able to complete the operation without it.
What problem does it solve and why is it useful? Feel free to fork, and customize it for your IP telephony ecosystem. My objective is to document my configuration for encrypted calls with VoIP.ms.
So you got your hands on a Cisco IP Phone 88xx Series with Multiplatform Firmware and now you want to get it up and running encrypted voice call with your favorite Voice-over-IP (VoIP) Service Provider.Ī Cisco IP Phone such as the 8861 aka part# CP-8861-3PCC-K9= supports Session Initiation Protocol (SIP) with Third-Party Call Control Setup! It's a great phone with a difficult setup. You’ve been there too - setting up a new IP Phone can be an ad-hoc, manual, and time-consuming process.
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