Grandstream GXW4200 Series FXS Gateway - UC Hospitality
Table of Contents
Prerequisite: Grandstream 16,24,32, or 48 Port FXS Hosted Voice Gateway GXW4200 series. Grandstream GXW4200 Series Features & Specifications: Grandstream GXW4200 V2 Series — Key Upgrades and Feature Enhancements Audio Quality Enhancements Security Upgrades Performance & Resilience Improvements Provisioning & Management Enhancements GXW4200 V1 vs V2 Quick Comparison Detailed Comparison V1 versus V2 Provisioning a Gateway in UC Hospitality Detailed Steps if you need to adjust port settings after adding the device to the portal: Additional Notes: Firmware Notes: Helpful speed dials:Prerequisite:
For Hospitality applications, UC Hospitality needs to be enabled, please contact your representative for a quotation. Discover how UC Hospitality is redefining the guest experience through innovative concepts and personalized service.
For Hospitality applications access to the UC Hospitality Portal with a scope of Reseller is required.
Grandstream 16,24,32, or 48 Port FXS Hosted Voice Gateway GXW4200 series.
The Grandstream GXW4200 series is an FXS-port Hosted Voice gateway that can connect analog devices such as phones and faxes to a Hosted Voice network. Support for several voice/fax codes, 16, 24, 32 or 48 RJ11 FXS ports, and a 50-pin Telco connector make the GXW4200 series versatile. They are a high-density Hosted Voice gateway that is fully compliant with SIP standards and broadly interoperable with various Hosted Voice systems, analog PBX, and phones on the market. The GXW4200 series features 16, 24, 32 or 48 FXS analog telephone ports, superb voice quality, rich telephony functionalities, easy provisioning, flexible dialling plans, advanced security protection, and excellent performance in high-volume voice calls.
This analog gateway offers hotels and small-to-medium businesses a cost-effective hybrid IP and analog telephone system. It allows them to enjoy the benefits of Hosted Voice communications while preserving investment in existing analog phones, fax machines, and legacy PBX systems.
Grandstream GXW4200 Series Features & Specifications:
- 16, 24, 32 or 48 telephone FXS ports with both RJ11 and 50-pin Telco connectors, as well as per-port LED
- Gigabit Ethernet and a backlit 128x32 graphic LCD with support for multiple languages
- 2 SIP server profiles per system and an independent SIP account per port
- Supported voice/fax codecs include G.711, G.723.1, G.726, G.729A/B, iLBC, T.38 Fax
- Advanced carrier-grade 128ms-tail-length line echo cancellation
- Over-voltage and over-current protection (ITU-T K.21 Basic Test Level)
- Support VMWI, NEON LED and stutter tone for message waiting indication
- Automated provisioning using TR-069 or AES-encrypted XML configuration file; TLS/SRTP/HTTPS for advanced security and privacy protection
Grandstream GXW4200 V2 Series — Key Upgrades and Feature Enhancements
The Grandstream GXW4200 V2 Series, including models GXW4216-V2, GXW4224-V2, GXW4232-V2, and GXW4248-V2, delivers a set of significant improvements over the original GXW4200 analog gateways.
These upgrades focus on audio quality, security, resilience, and provisioning, making the V2 series more secure, reliable, and future-ready for high-density FXS deployments.
Audio Quality Enhancements
The V2 series brings modern voice performance to legacy analog deployments:
- Wide-band audio support: All models support Opus and G.722 codecs, delivering near-HD voice clarity.
- Improved sound quality: Wide-band codecs offer richer, more natural sound than the narrowband audio of the original GXW4200 series.
- Per-port 3-way conferencing: Each FXS port supports simultaneous 3-party local conferencing, reducing reliance on PBX conferencing resources.
These improvements allow analog phones to deliver voice quality much closer to modern VoIP handsets.
Security Upgrades
Security is a significant area of enhancement in the GXW4200 V2 generation:
- Secure Boot & Unique Certificates: Each device includes a unique certificate and random default password, ensuring secure identity management.
- TLS/SRTP Encryption: SIP signalling and RTP media streams are protected using TLS and SRTP with AES encryption.
- Firmware Integrity Checks: Secure boot mechanisms validate firmware authenticity, preventing unauthorized or tampered firmware from running.
These upgrades align the V2 series with enterprise and service-provider security standards.
Performance & Resilience Improvements
The GXW4200 V2 series introduces several reliability and redundancy features designed for high-availability deployments:
- Dual Firmware Images: Allows seamless fallback in case of firmware corruption or failed upgrades.
- Surge Protection: Built-in over-voltage and over-current protection, compliant with ITU-T K.21, safeguards devices from power surges.
- Failover SIP Server: Automatically switches to a secondary SIP server if the primary becomes unavailable.
- Gigabit Ethernet: All models include auto-sensing 10/100/1000 Mbps ports for higher throughput and future-proof networking.
These features make the V2 series ideal for demanding environments like hotels, campuses, and multi-tenant deployments.
Provisioning & Management Enhancements
The V2 series improves upon Grandstream’s provisioning framework to support secure, scalable deployments:
- HTTPS-Based Secure Provisioning: Protects configuration files during automated provisioning.
- GDMS Integration: Compatible with Grandstream Device Management System (GDMS) for centralized cloud management.
- Flexible Management Options: Web UI, SSH, Syslog, TR-069, TFTP/HTTP/HTTPS, and XML configuration.
These tools simplify large-scale rollouts and ongoing administration for service providers and IT teams.
GXW4200 V1 vs V2 Quick Comparison
| Category | GXW4200 (V1) | GXW4200 (V2 Series) |
|---|---|---|
| Audio Quality | Narrowband codecs only | Wide-band Opus/G.722, per-port 3-way conferencing |
| Security | Basic password & firmware controls | Secure boot, TLS/SRTP, unique certs, random passwords |
| Resilience & Network | Single firmware, Fast Ethernet | Dual firmware, surge protection, Gigabit, failover SIP |
| Provisioning | TFTP/HTTP/XML only | Adds HTTPS, TR-069, GDMS, improved security |
The GXW4200 V2 series modernizes analog gateway deployments by combining HD-grade audio, enterprise security, and carrier-grade resilience.
This makes it ideal for:
- Hospitality and campus environments
- Legacy PBX migrations
- Large analog endpoint deployments
- SIP trunking integrations at scale
Detailed Comparison V1 versus V2
Feature / Capability |
V1 (Original) |
V2 (Enhanced) |
Notes / Remarks |
| Audio / Codec / Quality | Narrowband codecs only (e.g. G.711, etc.) | Adds wideband / HD audio support (e.g. G.722, Opus, 16 kHz paths) | Many of the “improved audio quality” claims for GXW4248 V2 reflect this change. |
| Security / Boot / Certificate | Standard firmware / security model | Secure boot, dual firmware images (fallback), unique certificate per device, stronger encryption (TLS/SRTP/HTTPS) | These were key upgrades in the V2 generation for hardening the device. |
| Network Interface / Throughput | Typically 10/100 or 10/100/1000 (depending on model) | All V2 models include Gigabit (10/100/1000) auto-sensing RJ45 ports | The V2 marketing specifically highlights the gigabit interface. |
| Local 3-Way Conference per Port | Limited or absent in V1 | Enabled: each FXS port can host a 3-party local (on-device) conference | One of the enhancements often noted for V2 (especially in GXW4248 V2 descriptions) |
| Failover SIP / Redundancy | May support backup SIP server in certain configs | V2 supports automatic failover to a secondary SIP server | This is explicitly marketed as a V2 feature. |
| Telco Connector / Port Densities | The 48-port model in V1 often used RJ21 / 50-pin style connectors | V2 48-port model (GXW4248-V2) includes 2 × 50-pin Telco connectors plus its FXS ports | This hardware change is more about density / cabling convenience in the 48-port unit. |
| Power Supply / Consumption | Lower power in smaller models; the 48-port likely required higher wattage, but older spec | In V2, the 48-port model uses 24 VDC / 6.25 A (≈ 150 W) in many cases | Note: smaller models (16/24/32) in both generations tend to use more modest power supplies. |
| Provisioning / Management | FTP / HTTP / TFTP / XML config; web UI, CLI, etc. | In V2, support for TR-069, enhanced remote provisioning, GDMS (Grandstream Device Management System) integration, better logging, syslog, etc. | The V2 line emphasizes improved provisioning / cloud device management. |
| Firmware Upgrade / Backward Compatibility | More flexibility in firmware versions | Some constraints: e.g. once certain V2 firmware versions are installed, downgrades to older versions (or to V1 firmware) may not be possible. | For example, in V2 release notes: after upgrading e.g. to 1.0.29.x, some older versions cannot be loaded back. |
| Display / Interface | Basic displays / LED indicators | More advanced “graphic” backlit LCD display (e.g. 132×48) supporting multiple languages | V2 marketing often lists “132×48 backlit graphic display” as a feature. |
| Interoperability / SIP Profiles | Standard SIP support, but possibly fewer flexibility | Enhanced: more SIP profile flexibility, better interoperability, improvements in DTMF handling, “ignore alert-info” options, etc. | Many of the incremental firmware/feature improvements are more feasible because of stronger hardware in V2. |
Provisioning a Gateway in UC Hospitality
- Select the Inventory tab.
- Select the Phone Hardware tab.
- Click the Add button and select Add Gateway.
- The Add Gateway Model loads. Select the Model from the Model dropdown.
- Enter the MAC address for the Gateway.
- Select Autofill. The Autofill Ports modal opens. Select whether you would like to include Users, Rooms, and Common areas (this is specific to what is connected to the Gateway). Enter the starting port and the ending port and click Submit. A tone generator must be used to confirm the room/area associated with each port on the Gateway.
To connect it to the network, connect analog phones, and configure it through its web interface, first connect the gateway to the network using an Ethernet cable. Then, use an RJ21 to RJ11 cable to connect your analog phones to the RJ21 port on the back of the gateway. Finally, access the gateway's configuration interface via a web browser and configure it to register with your Hosted Voice provider or PBX.
Detailed Steps if you need to adjust port settings after adding the device to the portal:
1. Connect to the Network:
Connect an Ethernet cable from the LAN port on the GXW4200 series gateway to the router or network switch.
Ensure the gateway receives power through PoE if supported or by connecting the power adapter.
2. Connect Analog Devices:
Using an RJ21 to RJ11 cable, connect your analog phones or fax machines to the RJ21 port on the back of the GXW4200 series gateway.
3. Access the Configuration Interface:
Find the gateway's IP address (you may need to check your router's DHCP client list or use a network scanner).
Open a web browser and enter the gateway's IP address.
Log in using the default username and password (usually "admin" and "admin").
4. Configure the Gateway:
Navigate to the FXS Port settings. Configure each FXS port with the UC Hospitality settings (e.g., SIP User ID, Authentication ID, Password, SIP Server, etc.).
Ensure you've created the corresponding extensions (or fax extensions) in UC Hospitality before configuring the gateway.
Save and apply the changes.
5. Verify Registration:
Check the status of the FXS ports in the gateway's interface to ensure they are registered with your Hosted Voice provider or PBX.
Test the connections by making and receiving calls from the connected analog devices.
Additional Notes:
Firmware Updates: Check for and install the latest firmware for your gateway to ensure optimal performance and security.
QoS: Consider configuring your network's Quality of Service (QoS) settings to prioritize Hosted Voice traffic, ensuring clear call quality.
Security: Be sure to change the default password and configure any necessary security settings for your gateway
Firmware Notes:
Version 1.1 20210805 (Tested on firmware 1.0.19.4)
If none was set via the GUI, set the template to include a default digit map. This fixes an issue where calls will not complete on newer versions of the gateway's firmware.
Version 1.2 20220825 (Tested on firmware 1.0.23.2)
- Remove the firmware upgrade URL so that firmware upgrades don't happen automatically.
- Disable SSH access.
- Set default web access to HTTPS.
- Disabled the user and viewer access (admin remains).
- Disabled the DHCP time zone option.
- Disabled option 66 after initial configuration.
Version 2.0 20221021 (Tested on firmware 1.0.23.5)
- Use the latest template from Grandstream that organizes the P values into logical groupings and includes information about the settings and valid values.
- Removed ringdown settings so that the provisioning file will not override custom settings.
- Set the DHCP time zone option to disabled.
- Disable option 66 after initial provision.
- Disable most call features like DID and Forward.
Version 2.1 20240619
- Add support for ring down with zero delay. (Starting at P4210, all FSX ports).
- Add support for polarity settings. This setting utilizes different profiles in the gateway to apply features to each port individually.
Default: no change, use profile 1. - Loop: Use profile 2, set Loop Current Disconnect (P893) to yes, and set Loop Current Disconnect Duration (P857) to 5000.
Helpful speed dials:
*97: Read back port number.
*98: Read back the device name assigned to the port.
*99: Provision gateway without a reboot.
Pressing # before dialling a number will act as redial.