https://www.cisco.com/c/en/us/products/collaboration-endpoints/ip-dect-6800-series-multiplatform-firmware/index.html
Improve your workplace collaboration. Cisco IP Phones with Multiplatform Firmware (MPP) are powered by Cisco Webex Calling or Cisco-approved third-party UCaaS...
cisco ip phonedectseriesmultiplatformfirmware
https://www.verizon.com/support/knowledge-base-302738/
Activate your One Talk W78B IP DECT cordless phone to get started. This ensures you can make calls and connect to the Verizon network.
ip dectcordless phonetalkactivateset
https://www.verizon.com/support/knowledge-base-302762/
A quick troubleshooting step is to remove and re-insert the battery. If the W78HV cordless handset bundled with your One Talk W78B DECT IP phone is slow or...
ip dectonetalkcordlesshandset