Description
Overview
Expand your business communications with the Grandstream DP755 Long-Range DECT VoIP Base Station, a high-performance wireless IP phone base station designed to provide reliable cordless communication across offices, warehouses, retail stores, campuses, hospitality environments, and residential locations. Supporting up to 10 Grandstream DECT handsets and 20 SIP accounts, the DP755 provides a flexible solution for organisations that need multiple cordless users connected to a single VoIP system.
With up to 50 metres of indoor range and up to 400 metres outdoors when paired with compatible handsets such as the DP730, DP725, or DP735, the DP755 provides extensive wireless coverage. Integrated Power over Ethernet (PoE), HD audio, 3-way conferencing, Push-to-Talk, advanced telephony features, and strong DECT security make it a versatile foundation for professional cordless VoIP deployments.
Quick Specs
- Product Type: Long-Range DECT VoIP Base Station
- Handset Capacity: Up to 10 DECT handsets
- SIP Accounts: Up to 20 SIP accounts per system
- Lines: Up to 20 lines per handset
- Concurrent Calls: Up to 8 concurrent calls
- Indoor Range: Up to 50 metres
- Outdoor Range: Up to 400 metres with DP730, DP725, or DP735; up to 350 metres with DP722 or DP720
- Audio: HD audio with full-duplex speakerphone support
- Conference Calling: 3-way audio conferencing
- Push-to-Talk: Supported
- Network Connection: Ethernet
- Power: Integrated Power over Ethernet (PoE)
- Security: DECT authentication and encryption, TLS, SRTP, and HTTPS
- Provisioning: TR-069 and XML configuration files
- Management: Grandstream Device Management System (GDMS)
- Ideal For: Businesses, warehouses, retail, hospitality, campuses, and residential VoIP
Why Buy
- Support up to 10 handsets: Build a multi-user cordless VoIP system using a single DP755 base station.
- 20 SIP accounts: Manage multiple SIP accounts and services across the DECT system.
- Extended wireless coverage: Reach up to 50 metres indoors and up to 400 metres outdoors with compatible handsets.
- PoE convenience: Integrated Power over Ethernet simplifies installation by allowing network connectivity and power through a compatible Ethernet connection.
- Clear HD audio: HD voice and full-duplex speakerphone functionality help provide professional-quality conversations.
- Flexible communication: 3-way conferencing, Push-to-Talk, call transfer, call forwarding, call waiting, and other advanced features support everyday business communication.
- Strong security: DECT authentication and encryption, TLS, SRTP, and HTTPS help protect calls, accounts, and device communications.
- Easy deployment: TR-069, XML configuration, GDMS, and Zero Config support with compatible Grandstream UCM IP PBXs simplify provisioning and management.
Insights
The Grandstream DP755 is designed for organisations that need to extend VoIP communication beyond a fixed desk. By supporting up to 10 DECT handsets from a single base station, it allows employees to remain reachable while moving around offices, warehouses, stores, facilities, and other working environments.
Its long-range DECT architecture provides up to 50 metres of indoor coverage and up to 400 metres outdoors when used with compatible long-range handsets. This makes the DP755 particularly useful for larger premises where traditional wired IP phones may restrict mobility.
The base station also provides the capacity required for professional deployments. With 20 SIP accounts, up to 20 lines per handset, and up to 8 concurrent calls, the DP755 can support multiple users and calling requirements from one central DECT base station.
Key Features
Up to 10 DECT Handsets
The DP755 supports up to 10 compatible Grandstream DECT handsets from a single base station, making it suitable for multi-user cordless VoIP deployments. Supported handsets include models from Grandstream’s DP series such as the DP720, DP722, DP725, DP730, and DP735, with range depending on the handset model.
Up to 20 SIP Accounts
Support for up to 20 SIP accounts per system gives businesses greater flexibility when managing multiple extensions, users, departments, or VoIP services. Each compatible handset can also map SIP accounts according to the deployment requirements.
Long-Range DECT Coverage
The DP755 provides up to 50 metres of indoor range. Outdoor coverage can reach up to 400 metres with compatible DP730, DP725, or DP735 handsets, while DP722 and DP720 handsets support up to 350 metres outdoors. Actual range may vary depending on building construction, obstacles, interference, and environmental conditions.
Integrated PoE
Built-in Power over Ethernet support allows the DP755 to receive both network connectivity and power through a compatible Ethernet connection, helping simplify installation and reduce cable requirements.
HD Audio and Full-Duplex Speakerphone
The DP755 supports HD audio and full-duplex speakerphone functionality when paired with compatible DECT handsets, helping deliver clear conversations for everyday business communication.
8 Concurrent Calls
The DP755 supports up to 8 concurrent calls, allowing multiple registered handsets to handle simultaneous conversations within the DECT system.
3-Way Audio Conferencing
Built-in support for 3-way audio conferencing allows users to combine multiple participants into a single conversation without requiring a separate conferencing system.
Push-to-Talk Support
The DP755 supports Push-to-Talk functionality when used with compatible Grandstream handsets, providing a convenient way for teams to communicate quickly across supported devices.
Advanced Telephony Features
The DP755 supports a broad range of business telephony functions, including call transfer, call forwarding, call waiting, Do Not Disturb, message waiting indication, multi-language prompts, flexible dial plans, and more.
Secure DECT Communication
DECT authentication and encryption help protect wireless communications and account information. The DP755 also supports security technologies including TLS, SRTP, and HTTPS for additional protection during VoIP deployment and management.
Automatic Provisioning
Deployment can be simplified through TR-069 and XML configuration files. When used with compatible Grandstream UCM IP PBXs, the DP755 also supports Zero Config provisioning, helping reduce manual configuration during installation.
Grandstream Device Management System
The DP755 supports Grandstream Device Management System (GDMS), providing a centralised option for managing compatible Grandstream devices and deployments.
Shared SIP Account Support
A shared SIP account can be assigned across multiple handsets, allowing users to answer calls regardless of their location within the DECT coverage area. This is particularly useful for teams that need calls to be available across several mobile handsets.
Use Cases
- Warehouses: Provide cordless VoIP communication for staff moving between storage, loading, and operational areas.
- Retail Stores: Keep employees connected throughout sales floors, stockrooms, and service areas.
- Offices: Provide mobile DECT communication for teams that need to move around the workplace while remaining reachable.
- Hospitality: Support mobile communication for hotel, maintenance, housekeeping, and service teams.
- Industrial Facilities: Extend VoIP communication across larger operational areas without requiring every user to remain at a desk.
- Campuses: Take advantage of the extended outdoor DECT range for suitable campus and facility deployments.
- Small and Medium Businesses: Build a scalable cordless VoIP system supporting multiple users and SIP accounts.
- Residential VoIP: Provide multiple cordless handsets from a central VoIP base station for larger homes or properties.
Is It Right?
This base station is a great choice if you:
- Need a long-range DECT VoIP solution.
- Want to connect up to 10 cordless Grandstream DECT handsets.
- Need up to 20 SIP accounts within a single DECT system.
- Require up to 8 concurrent calls across the system.
- Want PoE for a cleaner and simpler network installation.
- Need cordless communication across an office, warehouse, retail store, or other large environment.
- Want HD audio, 3-way conferencing, and advanced business telephony features.
- Prefer centralised provisioning and management options.
You may want to consider another option if you:
- Only need a single wired desktop IP phone.
- Do not require cordless DECT communication.
- Need a base station supporting more than 10 handsets within a single DECT cell.
- Require a solution without the need for compatible Grandstream DECT handsets.
Specifications
| Product Type | Long-Range DECT VoIP Base Station |
| Handset Capacity | Up to 10 DECT handsets |
| SIP Accounts | Up to 20 SIP accounts per system |
| Lines | Up to 20 lines per handset |
| Concurrent Calls | Up to 8 |
| Indoor Range | Up to 50 metres |
| Outdoor Range | Up to 400 metres with DP730, DP725 or DP735; up to 350 metres with DP722 or DP720 |
| Audio | HD audio and full-duplex speakerphone |
| Conference Calling | 3-way audio conferencing |
| Push-to-Talk | Supported with compatible handsets |
| Network Interface | Ethernet |
| PoE | Integrated PoE support |
| Voice Codecs | G.711μ/a-law, G.723.1, G.729A/B, G.726-32, iLBC, G.722, OPUS, G.722.2/AMR-WB (special order) |
| Security | DECT authentication & encryption, TLS, SRTP, HTTPS |
| Provisioning | TR-069, XML configuration files, Zero Config with compatible UCM IP PBXs |
| Device Management | Grandstream Device Management System (GDMS) |
| LED Indicators | Power, Network, and DECT Pairing/Paging |









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