Johniken16 - Latest News 2026-07-21T16:11:18+00:00 urn:uuid:d4d2ff1b-a52c-e0d6-632f-7019df4c1d1d Avaya SIP Mitel VoIP Cisco PBX 5420 Handset urn:uuid:b24996db-14ff-fe64-bb02-71c02904d77b 2017-11-24T09:38:16+00:00