What to do if my Vertical Telephone system power fails?
If your Vertical Telephone system experiences a power failure, it may be due to a power short circuit in one or more boards. Try exchanging any malfunctioning boards for ones known to be in good working order, and dust each board with a dry cloth. Also, check the PSU fuse and replace the PSU with an identical one if necessary.
Why does my Vertical Telephone system not operate?
If your Vertical Telephone system is not operating, there might be several reasons: * A power short circuit in some board(s). Check the connection of each board with the MBU. Check the PSU. Check for a short circuit on the MBU or other boards. Press the Reset button when the DIP switch (SW1for database protection) is in the default position. * Bad board connection. * System database not working.
How to fix a Vertical Telephone DKTU that does not operate?
If a Vertical Telephone DKTU (Digital Key Telephone Unit) is not operating, consider the following: 1. A bad extension circuit: Exchange the malfunctioning board for a working one. 2. A bad connection: Check the connection between the SLT line and DKT on the MDF, and fix any mismatching. Repair any broken connection between the System and DKT. 3. Proximity of DKT and System: Check the distance between the MBU/EMBU/CHB308 and the DKT. 4. A bad DKT: Plug the DKT into another extension port that has been verified as working. If it still fails, replace the DKT.
What to do if there is noise on the external MOH and paging port of my Vertical Telephone?
If you are experiencing noise on the external MOH (Music On Hold) and paging port of your Vertical Telephone, the issue might be: * Induced noise: Ensure a shielded cable is used as the connection wire between the system and the amplifier. * Excessive input level: Decrease the output level of the external music source using the volume control on the source.
What causes CO line operation failure in a Vertical Telephone?
A CO (Central Office) line operation failure in your Vertical Telephone could be due to: * ANCR fail: Check the U8 (Voice processing and Tone detection device). * Bad connection: Check all connections.
How to troubleshoot a Vertical Telephone SLT that does not operate?
If a Vertical Telephone SLT (Single Line Telephone) is not operating, the cause might be: * A bad MBU/EMBU/CHB308 board: Exchange the board for one in good working condition. * A bad connection: Check that the board connection between the lines of the SLT and DKT on the MDF, and fix any mismatching.
What to do if my Vertical Telephone expansion KSU does not operate?
If your Vertical Telephone expansion KSU (Key Service Unit) does not operate, it could be related to: * Power ON sequence: Turn on the Basic KSU after turning on the Expansion KSU. Then press the Reset button. * Link cable connection: Check the link cable to verify the connection and its working condition.
Details how to assign stations as system or group attendants.
Explains how to call and queue calls for attendants.
Describes how attendants can forward calls to other stations.
Handles unattended calls that are recalled to the attendant.
Manages call routing based on time of day modes.
Used for identifying outgoing calls for accounting and billing.
Restricts access to CO lines requiring a code for authorization.
Defines call service permissions and restrictions for stations and lines.
Allows stations to display custom text messages on their LCD.
Monitors external contacts and signals stations for alarms.
Automatically transfers incoming fax calls to a designated fax station.
Allows authorized extensions to listen or join conversations.
Eliminates incoming calls and signals to a station.
Customizes buttons for various features and functions.
Allows users to leave message waits or request call backs on busy stations.
Enables mobile phones to act as system extensions for calls.
Allows users to join conferences without supervisor invitation.
Controls door opening mechanisms via system relays.
Routes calls sequentially to stations in a group until answered.
Distributes calls to the station idle the longest in a group.
Manages call distribution and provides statistics for groups.
Routes calls based on dialed digits and VMIB announcements.
Explains the Unified Dialing Plan for station numbering.
Analyzes and routes dialed numbers based on the Network Routing Table.
Displays absent text messages on the LCD of networked calling stations.
Routes attendant calls to a centralized attendant on a networked system.
Displays caller's number and name on incoming calls.
Assigns stations as executive/secretary pairs for call routing.
Links two stations for alternative use and shared status.
Allows or denies access to CO lines and groups based on station settings.
Restricts outgoing call duration with an automatic cut-off timer.
Allows users to queue for busy CO lines and receive callbacks.
Allows emergency calls regardless of station COS or LCR.
Automatically retries busy or unanswered calls within a set counter.
Stores station numbers for quick dialing via speed dial bins.
Provides system-wide speed dial numbers for easy access.
Assigns CO Lines for exclusive use by specific DKTU users.
Manages various paging types including zone and all-call paging.
Enables emergency paging with pre-recorded VMIB messages.
Forwards calls to other stations, groups, or VMIBs.
Routes calls to a preset destination if the station does not answer.
Transfers connected calls to new CO calls, screened or unscreened.
Allows picking up calls ringing at other stations by dialing codes.
Picks up calls ringing at another station in the same pick-up group.
Upgrades MBU software via LAN interface using ipLDK program.
Upgrades MBU software via RS-232C interface using ipLDK program.
Illustrates formats and examples of lost call records.
Rejects incoming collect calls by operating a blocking procedure.
Sends message wait notifications to mobile phones linked to stations.
Analyzes attendant resource usage and performance metrics.
Provides reports on system call traffic and status.
Analyzes traffic patterns for CO line groups.
Routes DID calls directly to station VMIBs for messages.
Transfers CO/ICM calls directly to a station's voice mailbox.
Reroutes unanswered calls to the station's voice mailbox.
Allows recording system greetings and prompts for VMIB use.
Enables users to record personal greetings for their VMIB.
Establishes IP calls by receiving or dialing IP addresses.
Routes calls based on station numbers in the Network Routing Table.
Speeds up call setup by allowing earlier H.245 channel negotiation.
Records conversations to the mailbox by pressing a RECORD button.
Records conversations to VMIB mailbox by pressing a RECORD button.
General| Protocols | SIP |
|---|---|
| Ethernet Ports | 2 x 10/100 Mbps |
| PoE | Yes |
| Lines | 3 |
| Supported Codecs | G.711, G.729 |
| Speakerphone | Full-duplex |
| Headset Port | Yes |
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