
Yealink 1300033 Expansion Module 50 for SIP phone sidecar functionality.
The Yealink 1300033 is the Expansion Module 50 (EXP50), a colour-screen sidecar designed to extend the functionality of compatible Yealink IP phones. This module provides additional programmable keys with an integrated LCD display, allowing users to manage a higher volume of calls, speed dials, and BLF (Busy Lamp Field) monitoring directly from their desk phone setup.
The EXP50 is designed for use with Yealink’s T5 series IP phones, providing reception staff, executive assistants, and call centre operators with expanded line appearance and one-touch access to frequently dialled contacts. Multiple expansion modules can typically be daisy-chained to further increase capacity for high-demand environments.
This expansion module is part of Yealink’s current IP telephony ecosystem, supporting modern SIP-based unified communications deployments. It is well suited to businesses requiring efficient call handling and visibility across multiple lines or extensions.
Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.

| Platform | Yealink WH/UH/YHS Headset Series |
|---|---|
| Manufacturer | Yealink |

| Platform | T2 Series |
|---|---|
| Manufacturer | Yealink |

| Platform | Yealink WH Series |
|---|---|
| Manufacturer | Yealink |

| Platform | EXP38 Expansion Module |
|---|---|
| Manufacturer | Yealink |

| Platform | Yealink W70/W7x DECT Series |
|---|---|
| Manufacturer | Yealink |

| Platform | Yealink IP Phone Series |
|---|---|
| Manufacturer | Yealink |

| Platform | Yealink T5 Series |
|---|---|
| Manufacturer | Yealink |

| Platform | Yealink T5 Series |
|---|---|
| Manufacturer | Yealink |
| Key Features | Colour LCD display; 20 physical keys with tri-colour LEDs; Supports BLF and speed dial; Daisy-chain capable; USB-C connection to host phone |
|---|---|
| Applications | Reception and front desk call handling; Executive assistant support; Call centre environments; Multi-line monitoring |
| Compatibility | Yealink T54W; Yealink T56A; Yealink T57W; Yealink T58A |
| Specifications | 4.3-inch colour LCD; 20 programmable keys per module; USB-C interface; Powered via host phone |
| Platform | Yealink T5 Series |
| Manufacturer | Yealink |
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