Johniken16 - Latest News 2026-09-20T12:01:40+00:00 urn:uuid:d4d2ff1b-a52c-e0d6-632f-7019df4c1d1d Avaya SIP Mitel VoIP Cisco PBX 5420 Handset urn:uuid:a8b21581-c000-db8c-99d8-5cab01f4312a 2017-11-24T09:38:16+00:00