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  • Determining the Logo Parameters for Phone Firmwares

    Overview   You can display your company logo on hardware phones supported by Kerio Operator. Each phone firmware needs a logo in a different format. This article describes the process to determine the...

  • SIP Retransmission Timeout Critical Request

    Overview   Sometimes, the following warning entry related to Session Initiation Protocol (SIP) extension appears in the logs: [28/May/2019 20:39:58] Asterisk: SIP retransmission timeout for host 192.1...

  • Transferring and Parking Calls Using Kerio Phone

    Overview While on call, Kerio Phone provides you the options to transfer or park the call. Call parking is a special type of call transfer where calls wait for the callee at a designated parking slot....