Product Name: Excelltel PBX Central Telephone System CS+424 PBX Model NO.: CS+424 Brand: Excelltel or OEM Application: Universal Type Connection Mode: Air Connection Information Transmission Method: Simulation Structure of Port: Modular PBX Transmission Mode: Full Duplex Port Number: 4 Co Lines, 24 Extension Lines Type: PBX Transfer Caller ID: Yes Intercom System: Yes Capacity: 4 Co Line 24 Extension Cabinet: Plastic Case Trademark: Excelltel Transport Package: 5PCS Per Carton Specification: normal Origin: China HS Code: 8517621900 Product Description Name:Excelltel PBX Central telephone system CS+424Model: CS+424Capacity: 4 CO lines, 24 Extensions linesOther Functions:CapacityCOCapacity(min/max)2/4ExtensionCapacity(min/max)8/32ExternalHardwareInterfaceDoorPhoneYesDoorLockOpeneroptionalExternalMusicOnHoldingYesBackupBatteryInterfaceoptionalOperatorOperator/auto-attendentModeYesOperatorDesignationYesDay/NightModeYesMusic&RingingRecordableOGM(outgoingmessage)20secondsYes50secondsoptional60secondsoptional90secondsoptionalInternalMusicOnHoldingYesExternalMusicOnHoldingYes11ChordMelodyMusicSelectableYesRingassignment(CO-Extgroup)YesRingIdentifyYesSystemCRBTYesCallerIDExternalCallerIDYesIntercomCallerIDYesTransferCallerIDYesCalloperationCallTransferYesCallForwardingYesOUTgoingCallTransferYesCOtoCOTransferYesCallSwitch(pickupinconversation)YesCallPickup(Externalcall)YesCallPickup(Internalcall)YesCOLineReservation(Callwaiting)YesCOLineBookingYesSpecificCOLineDialingYesCallallExtensionsYesThreewayconferenceYesDoNotDisturbYesAuto/ManualDial-OutModeYesInternalFastDialingoptionalAutoIPDialingYesRedialinIndirect-dailing-outModeoptionalOtherFeatureCallRestrictionYesCallDurationControlYesCOLine&ExtsMonitorYesExtsGroupsYesExternalLineGroupYesRingingAssignmentYesIntelligentRouting(LCR)optionalFlexibleCoding(ChangeExt.No.)YesAutomaticExt.ReportingYesFlashTimeChoiceYesSystemPasswordYesRemoteProgrammingYesMenoryProtectWhilePowerOffYesMultipleCommunicationsChannel7FaxDetectionoptionalPowerFailureTransferYesLightningProtectingYesHousingMaterialPlasticPowerSupplyNormalTransformerPowerYesSwitchPoweroptionalBackupBatteryInterfaceoptionalPacking Details:Weight: 2.3~4.2KGS/PCQuantity: 5PCS in one cartonGift box size: 45× 29× 11cmCarton size: 56× 47× 31.5cm