How to Use VoIP with zTC

Voice over IP (VoIP) technology has become a critical component for modern businesses, enabling efficient and cost-effective communication. With zTC and its seamless integration capabilities, deploying and using VoIP systems such as 3CX in your environment is straightforward. Below, we’ll guide you through the process of setting up and using VoIP with zTC using SnapOS in a Citrix environment.

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Understanding the Requirements

Before diving into the setup, it’s essential to ensure you meet the necessary hardware and software requirements:

Hardware Requirements

• Thin Client Models: K1, K3, K5, or Dell Wyse 5470 (tested on K3)
• Audio Devices: USB headset or 3.5mm audio headset

Software Requirements

• SnapOS: Version 1.2 or later (tested on version 1.2.636)
• Citrix Server: XenDesktop and XenStudio 7.15
• Citrix Workspace (ICA Client): Version 22.2.0.20
• Windows 10 VM in Citrix Environment: Version 1909
• 3CX VoIP Desktop App: Version 18.9.921

Ensure you have the assigned extension number and password for the 3CX application

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Setting Up the Environment

1. Install the 3CX Desktop Application (VoIP)

1. Download the Application:
   • Visit 3CX’s official site.
   • Log in to your account and download the latest version of the desktop application.
2. Install on Windows 10 VM:
   • Double-click the .msi file and run it as an administrator.
   • Follow the on-screen instructions to complete the installation.
3. Login via Web Client:
   • Access the 3CX web client at https://pbx3cx.amzetta.com:5001/webclient/#/login.
   • Enter your assigned extension number and password.
4. Launch the Desktop App:
   • From the web client, click the Windows icon, and select “Open 3CX Desktop App.”
   • The 3CX interface will launch, ready for use.

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2. Configure zTC SnapOS for Citrix

1. Boot SnapOS on the Thin Client.
2. Add the Citrix Certificate:
   • Use the Citrix Configurator to upload the necessary certificate (snapvdica.cer).
   • Click the “+” button to add the certificate.
3. Set USB Redirection to Generic Mode:
   • Ensure the USB audio devices are configured for generic redirection to allow smooth operation with the VoIP application.
4. Access Citrix Workspace:
   • Open the Citrix Workspace application and accept the EULA.
   • Provide the Citrix server address, username, and password.
   • Launch the Windows 10 VM within the Citrix environment.

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Making a VoIP Call with zTC

1. Connect Audio Devices:
   • Plug in a USB headset or use 3.5mm audio jacks for audio input/output.
2. Launch 3CX Application:
   • Open the 3CX Desktop App in the Citrix environment.
3. Place a Call:
   • Select a contact from the “Team” section in the 3CX UI.
   • Use the on-screen keypad to make calls:
     • Domestic Calls: Add a “6” before the number for local calls.
     • International Calls: Dial the complete international number, including country code.

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Testing Scenarios for VoIP Performance

Scenario 1: Local Calls

Test calls within the same office network or to mobile numbers in the same city.

Scenario 2: Long-Distance Calls

Test calls between locations in different states within the same country.

Scenario 3: International Calls

Test calls between users in different countries (e.g., between India and the USA).

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Expected Results

• Audio Quality: Clear and crisp audio without disturbances or background noise.
• Reliability: No dropped calls or latency issues during testing.

For the best results, compare the performance on zTC with a standard desktop or laptop on the same network.

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By following these steps, zTC users can effectively utilize VoIP systems like 3CX, leveraging the robust capabilities of SnapOS and Citrix to enable seamless communication. For further assistance or advanced configurations, reach out to AmZetta’s support team.