Grandstream GXP2135 Quick Installation Guide

Grandstream GXP2135 IP Phone manual cover

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Grandstream GXP2135 IP Phone Specification

The Grandstream GXP2135 IP Phone is a high-performance communication device designed for business environments requiring reliable and efficient telephony solutions. This IP phone is equipped with a vibrant 2.8-inch color LCD display, which ensures a clear and intuitive user interface. It supports up to 8 lines and 4 SIP accounts, allowing users to manage multiple calls with ease. The GXP2135 is built with 32 programmable speed-dial/BLF keys, enhancing productivity by enabling quick and seamless call management. It offers HD audio for both the handset and speakerphone, ensuring crystal-clear voice quality.

The device is equipped with dual Gigabit network ports that support Power over Ethernet (PoE), facilitating easy installation and integrated network connectivity. The GXP2135 supports a wide range of audio codecs, including G.722 for HD audio. It features advanced security protection with TLS and SRTP encryption protocols, ensuring secure communications. The phone is compatible with major SIP platforms and can be auto-provisioned using TR-069 or XML configuration files, simplifying deployment across various IT environments.

It also supports Bluetooth for syncing with mobile devices and headsets, enabling versatile communication options. The GXP2135 includes EHS support for Plantronics headsets, providing added flexibility for hands-free operation. The phone's design incorporates a modern and sleek aesthetic, making it a suitable choice for professional settings. It is backed by robust firmware with regular updates to enhance functionality and security. Overall, the Grandstream GXP2135 offers a comprehensive set of features that cater to the needs of demanding business users, combining advanced telephony capabilities with ease of use and reliability.

Grandstream GXP2135 IP Phone F.A.Q.

How do I set up my Grandstream GXP2135 for the first time?

To set up your Grandstream GXP2135, connect the phone to a power source and your network using the Ethernet cable. The phone will boot up and attempt to obtain an IP address via DHCP. Follow the on-screen prompts to configure initial settings, including language, date, and time.

How can I reset my Grandstream GXP2135 to factory settings?

To reset the GXP2135 to factory settings, press the 'Menu' button, navigate to 'System', then 'Factory Reset'. Confirm the reset when prompted. Note that this will erase all custom settings.

What should I do if there's no dial tone on my Grandstream GXP2135?

Check that the Ethernet cable is properly connected and that the phone has power. Ensure that the account is registered by going to 'Status' then 'Account Status'. If not registered, verify SIP server settings.

How do I update the firmware on the Grandstream GXP2135?

To update the firmware, navigate to 'Menu' > 'System' > 'Firmware Update'. Choose the desired method (HTTP/HTTPS/TFTP) and ensure the firmware server path is correct. Confirm to initiate the update.

Can I configure a VPN on the Grandstream GXP2135?

The Grandstream GXP2135 does not support VPN configuration directly on the device. Instead, configure the VPN on your router or network to secure the connection.

How do I configure a speed dial on my Grandstream GXP2135?

To configure speed dial, press the 'Menu' button, go to 'Contacts', then 'Local Group'. Select a contact and assign a speed dial number by editing the contact details.

What is the maximum number of SIP accounts supported by the Grandstream GXP2135?

The Grandstream GXP2135 supports up to 8 SIP accounts. You can configure these accounts via the phone's web interface or directly on the device.

How can I access the web interface of the Grandstream GXP2135?

To access the web interface, find the phone's IP address by pressing the 'Menu' button, then 'Status'. Enter the IP address in a web browser. Login with the default credentials (admin/admin) unless changed.

How do I troubleshoot echo issues during calls on my Grandstream GXP2135?

To troubleshoot echo, try lowering the speaker volume and ensure the handset is properly seated. Check network settings for latency issues and ensure the latest firmware is installed.

How can I set up call forwarding on the Grandstream GXP2135?

To set up call forwarding, press the 'Menu' button, navigate to 'Call Features', and select 'Call Forwarding'. Choose the type of forwarding and enter the destination number.