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OnSIP Phones

Get OnSIP compatible phones at IP Phone Warehouse. OnSIP is a cloud phone system and unified communications platform for business. OnSIP has a BYOD (Bring Your Own Device) policy, so you can buy the OnSIP compatible VoIP phones that work best for your company from a third-party. IP Phone Warehouse offers the best pricing on supported OnSIP phones.

Note: These phones need to be provisioned for use with OnSIP. For more information, see the following links:

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  • Grandstream GXP2170 12-Line IP Phone

    Grandstream

    Grandstream GXP2170 12-Line IP Phone

    $159.00
    $94.99

    Grandstream GXP2170 is an executive desktop IP phone that gives you 12 dual-color line appearances. You have the option to add up to four GXP2200EXT Expansion Modules with 40 more line appearances or speed dial contacts each. You can customize the phone...

  • Grandstream GXP2135 8-Line IP Phone

    Grandstream

    Grandstream GXP2135 8-Line IP Phone

    $115.00
    $72.99

    Grandstream GXP2135 is a versatile VoIP phone with a rich feature-set at an extraordinary price. Grandstream Networks designs open-standards products and the GXP2135 is no different. It supports SIP, making it interoperable with a wide range of IP phone...

  • Grandstream GXP2160 6-Line IP Phone

    Grandstream

    Grandstream GXP2160 6-Line IP Phone

    $159.00
    $99.99

    The Grandstream GXP2160 VoIP phone offers a total of six line appearances and SIP interoperability. Access callers and telephony features through the phone's attractive interface, including five programmable buttons, 24 busy lamp fields and a vivid TFT...

  • Grandstream GXP2140 4-Line IP Phone

    Grandstream

    Grandstream GXP2140 4-Line IP Phone

    $139.00
    $82.99

    The Grandstream GXP2140 phone is an attractive desktop device offering a wide range of features. Enjoy HD VoIP through the handset and speakerphone, or join five-way conferencing. The RJ9 port and Bluetooth support offer headset connectivity, with...

  • Grandstream GXP2130 v2 3-Line IP Phone

    Grandstream

    Grandstream GXP2130 v2 3-Line IP Phone

    $99.00
    $72.99

    The Grandstream GXP2130 v2 phone packs an incredible spectrum of VoIP and connectivity features into one versatile device. The phone delivers HD quality audio through the handset or speakerphone. Connect a headset to the dedicated headset port, with...

  • Grandstream GXP1630 3-Line IP Phone

    Grandstream

    Grandstream GXP1630 3-Line IP Phone

    $95.00
    $51.99

    The Grandstream GXP1630 is built for small-to-midsize businesses. It features two Gigabit Ethernet ports for speedy network connection. These same ports can power the phone using PoE, if you have a PoE switch or injector set up. With HD audio and a...

  • Grandstream GXP1610 1-Line IP Phone

    Grandstream

    Grandstream GXP1610 1-Line IP Phone

    $45.00
    $29.99

    High-quality audio and a user-friendly interface let the Grandstream GXP1610 phone bring a powerful experience to any employee in the office. The phone features two line keys with dual-color LEDs, a display with XML browser to support a variety of...

  • Grandstream GXP1628 2-Line IP Phone

    Grandstream

    Grandstream GXP1628 2-Line IP Phone

    $84.00
    $48.99

    The Grandstream GXP1628 phone presents many dedicated keys and programmable buttons on one concise interface. Easily navigate the phone menus and access essential telephony features. Eight programmable keys along the side of the console support busy...

  • Grandstream GXP1625 2-Line IP Phone

    Grandstream

    Grandstream GXP1625 2-Line IP Phone

    $59.00
    $37.99

    The Grandstream GXP1625 phone can be powered via an AC power supply or PoE. Connect the phone to your SIP-based phone system or Grandstream IP PBX and access an incredible range of VoIP features and functions. The phone has an HD handset, full duplex...

  • Grandstream GXP1620 2-Line IP Phone

    Grandstream

    Grandstream GXP1620 2-Line IP Phone

    $55.00
    $34.99

    The Grandstream GXP1620 phone features an HD handset and wideband audio support. Also use the full duplex speakerphone for handsfree telephony, or connect a headset and compatible EHS cable to the phone. Audio is improved through echo cancellation, QoS...

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