Estech Systems‚ Inc. (ESI) provides robust communication solutions. This manual details features for eSIP‚ eCloud‚ and ePhone4x systems‚ ensuring efficient call handling and voicemail management.
ESI (Estech Systems‚ Inc.) has a long-standing reputation as a leading manufacturer of business telephone systems‚ notably with the ESI-600 System designed for converged communications. These systems cater to diverse business needs‚ offering a blend of traditional telephony and modern IP capabilities.
ESI phone systems are known for their reliability and comprehensive feature sets. They support various phone models‚ including ESI 40 Business Phones and 48/24-Key Feature Phones‚ providing users with flexible options. The systems prioritize accurate and timely messaging‚ encouraging prompt voicemail retrieval for improved communication.
This manual serves as a comprehensive guide to understanding and utilizing the full potential of your ESI phone system. It covers basic operations‚ advanced features‚ troubleshooting‚ and specific details related to eSIP and eCloud platforms. Proper use ensures optimal performance and user satisfaction;
An ESI phone system comprises several key components working in harmony. These include the core system itself – potentially an ESI C-Plus or C-Plus Executive – which manages call routing and features. Connected to this are the various phone sets‚ such as the ESI 40 Business Phone‚ 48-Key Feature Phone‚ and 24-Key Feature Phone‚ each offering a unique set of programmable buttons.
Integrated voicemail is a crucial component‚ accessible via dedicated features or direct access methods. The system utilizes features like FLASH for call management and specific codes (e.g.‚ P/UP 103) for call pickup. Power supplies‚ specifically those offered by ESI‚ are essential for reliable operation.
Modern ESI systems also incorporate IP capabilities with platforms like eSIP and eCloud‚ expanding connectivity options. Understanding these components and their interactions is fundamental to effectively managing and troubleshooting your ESI phone system.

ESI phones enable seamless communication. Lift the handset or press SPEAKER to answer calls; Hands-free answering is available on select models for intercom functionality.
Answering an Incoming Call: When your ESI phone rings‚ simply lift the handset to answer. Alternatively‚ if your system is configured for hands-free operation‚ pressing the SPEAKER button will answer the call. Some ESI systems support automatic answering for intercom calls when set for hands-free.
Making an Outgoing Call: To initiate a call‚ dial the desired phone number using the keypad. Ensure you are dialing the correct prefix if required for outside lines. The system supports various dialing modes‚ consult your system administrator for specifics.
Caller ID Display: Many ESI phones feature Caller ID‚ displaying the caller’s name or number before you answer. This information is programmed by your system administrator. Promptly answering calls demonstrates professionalism and encourages message leaving.
Remember to test your phone regularly to ensure proper functionality and familiarize yourself with any specific features programmed into your ESI system.
Transferring a call on an ESI system allows you to connect a caller with another extension. First‚ answer the incoming call. Then‚ to initiate a transfer‚ press the TRANSFER button (often labeled as ‘XFER’).
Next‚ dial the extension number of the person you wish to transfer the call to. The system will typically provide a confirmation tone or announcement. Once the called party answers‚ you can announce the caller and complete the transfer.
Some ESI systems offer ‘warm’ transfers‚ where you remain on the line until the recipient answers‚ allowing for a brief introduction. ‘Blind’ transfers disconnect you immediately after dialing the extension.
For quick access to a frequently used extension‚ your system administrator may have programmed a dedicated transfer button. Remember to verify the extension is available before completing the transfer.
ESI phone systems facilitate convenient conference calling‚ enabling multiple parties to participate in a single call. To initiate a conference‚ first establish a call with the first participant. Press the CONFERENCE button – often labeled as ‘CONF’ – to place the first caller on hold.

Dial the extension number of the next participant. Once they answer‚ press the CONFERENCE button again to add them to the call. Repeat this process for each additional participant.
During the conference‚ use the FLASH button to return to the original conferees if a call is dropped or needs adjustment. The system may support a maximum number of participants; consult your system administrator for details.
Ensure all participants are aware of the conference call and understand the expected etiquette. Properly managing the conference ensures clear communication and productive discussions.

ESI systems offer comprehensive voicemail‚ including message access‚ retrieval‚ and customizable settings. Prompt response to messages enhances communication and builds positive relationships.
Accessing your voicemail on an ESI system is straightforward‚ though the method can vary slightly depending on your specific phone model – such as the ESI 40 Business Phone‚ 48-Key Feature Phone‚ or 24-Key Feature Phone. Generally‚ direct access to all voicemail features‚ including message retrieval and mailbox management‚ is often initiated using a dedicated blue button on these handsets.
Alternatively‚ you may be able to access voicemail directly from your phone by dialing a specific access number programmed by your System Administrator. Remember that some ESI systems utilize Integrated Voice Messaging (IVM) with either a 13 or 19 system‚ requiring administrator assistance for setup. When your phone rings‚ simply lift the handset or press the speakerphone button. If your station is configured for hands-free answering‚ intercom calls will automatically connect. Ensure you are familiar with your system’s specific access method for optimal voicemail utilization.
Once you’ve accessed your voicemail‚ retrieving messages is typically a simple process. Following access via the dedicated button or dial-in number‚ the system will prompt you with the number of new messages received; You can then navigate through these messages using standard telephony keys – often the ‘*’ or ‘#’ keys for menu navigation‚ and the ‘1’ key to listen to a message.
ESI systems encourage prompt message retrieval and response‚ as this fosters better communication with callers. The system provides clear prompts guiding you through options like deleting messages‚ saving them‚ or forwarding them to another extension. Remember to pay attention to the system’s voice prompts for specific instructions tailored to your ESI phone model. Regularly checking and responding to voicemails ensures you don’t miss important information and maintain a professional image.

Your ESI phone system allows customization of voicemail settings to suit individual preferences. Accessing these settings‚ often through a dedicated menu option during voicemail access‚ enables adjustments to your greeting‚ notification preferences‚ and mailbox password. You can record a personalized greeting to provide callers with a professional and informative experience.
Furthermore‚ you can configure how the system notifies you of new messages – options may include a stutter dial tone or a message waiting indicator on your phone. Secure your mailbox with a unique password to prevent unauthorized access. System administrators can also adjust broader settings‚ such as mailbox size and auto-attendant options. Regularly reviewing and updating these settings ensures your voicemail system remains efficient and secure‚ reflecting your communication needs.

ESI systems offer features like Caller ID‚ Intercom‚ and programmable Feature Buttons. These tools enhance communication‚ streamline workflows‚ and improve overall system usability.
ESI phone systems provide comprehensive Caller ID features‚ displaying incoming caller information directly on your phone’s display. This allows you to quickly identify callers before answering‚ improving efficiency and enabling informed call handling. The data presented is often programmed by your system administrator‚ ensuring accuracy and relevance.
Depending on your specific ESI model (like the C-Plus or C-Plus Executive)‚ the Caller ID display might offer additional features. Some systems can store a call log of recent callers‚ allowing you to easily return missed calls. Furthermore‚ integration with voicemail systems can link Caller ID information to voice messages‚ providing context for each message received.
Proper configuration of Caller ID is crucial for optimal performance. Contact your system administrator to verify that Caller ID services are active and correctly configured for your extension. They can also assist with troubleshooting any display issues or ensuring compatibility with your phone hardware.
ESI phone systems offer a convenient intercom feature for quick‚ internal communication. To initiate an intercom call‚ simply dial the extension number of the party you wish to reach. Depending on your system setup‚ the call may automatically answer if the receiving station is configured for hands-free intercom. Otherwise‚ the receiving phone will ring as a standard incoming call.
For systems with hands-free answer enabled‚ lifting the handset or pressing the SPEAKER button will initiate the intercom call. Remember that certain ESI systems‚ like those with Integrated 13 or 19 keyphones‚ may require specific programming by your system administrator. To pick up a parked intercom call‚ use codes like P/UP 1 0 3 to answer a call on extension 103.
Intercom functionality streamlines internal communication‚ reducing the need for lengthy explanations over external lines. Ensure your extension is properly programmed for intercom access and consult your system administrator for any specific configuration details or troubleshooting assistance.
ESI phones‚ particularly the 48-Key and 24-Key Feature Phones‚ utilize dedicated feature buttons for quick access to common functions. These buttons‚ often color-coded (like blue for voicemail access)‚ streamline daily operations. Consult your system administrator for a complete mapping of button functions specific to your phone model and system configuration.
Common features accessible via buttons include direct access to voicemail‚ call transfer‚ conference calling‚ and speed dial. The FLASH button is crucial for returning to original conferees during conference calls. Remember that button functionality can be customized by your system administrator to align with your organization’s workflow.
Proper utilization of feature buttons significantly enhances efficiency. Familiarize yourself with the layout and functions of your phone’s buttons to maximize productivity. Refer to the ESI C-Plus and C-Plus Executive user guides (0450-1177) for detailed explanations and programming options.


ESI systems may encounter issues like no dial tone or voicemail access problems. Check connections and programming; contact your administrator for assistance with the ESI-600.
Experiencing no dial tone with your ESI phone system can be frustrating‚ but several troubleshooting steps can resolve the issue. First‚ verify the physical connection: ensure the phone cord is securely plugged into both the phone and the wall jack or network port. Confirm the cord isn’t damaged.
Next‚ check the power supply to the phone‚ if applicable‚ and ensure it’s properly connected. If using a power-over-Ethernet (PoE) connection‚ verify network connectivity and that the switch is providing power.
If the problem persists‚ the issue might be with the system itself. Check if other extensions are also experiencing the same problem; If so‚ there may be a central system issue requiring administrator intervention. Contact your System Administrator to verify proper programming and system functionality. They can check line settings and overall system status. Remember to use the ESI-provided power supply for optimal performance.
Difficulty accessing your voicemail on an ESI system often stems from incorrect setup or forgotten passwords. Ensure you are dialing the correct access number‚ which may vary depending on your system configuration (Integrated 13 or 19 systems require administrator assistance). Double-check your password; if forgotten‚ contact your System Administrator for a reset.
Verify your extension is properly programmed for voicemail access. On ESI 40‚ 48-Key‚ or 24-Key Feature Phones‚ utilize the dedicated voicemail access key (often blue). If you encounter a busy signal‚ try again later‚ as the voicemail system may be processing other requests.
Confirm that your mailbox is active and hasn’t been disabled. Promptly retrieving and responding to messages ensures optimal system performance. If problems persist‚ consult your system documentation or contact your IT support team for further assistance with mailbox settings and system troubleshooting.
The ESI-600 System‚ released in 2006‚ represents a significant advancement in converged communications from ESI (Estech Systems‚ Inc.). Designed as a comprehensive business telephone system‚ it integrates traditional telephony with emerging technologies‚ offering a scalable solution for businesses of various sizes.
This system supports a wide range of features‚ including advanced call handling‚ voicemail‚ and conferencing capabilities. The ESI-600 is known for its reliability and flexibility‚ allowing for customization to meet specific business needs. It provides a foundation for unified communications‚ streamlining workflows and enhancing productivity.
Proper configuration and maintenance are crucial for optimal performance. Users should consult the detailed system documentation and work with a qualified administrator to ensure all features are correctly implemented and maintained. The ESI-600 continues to be a viable option for businesses seeking a robust and feature-rich phone system.