IP Video Telephony – Grandstream Singapore
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    GBX20

    GBX20

    GBX20 EXT
    Extension Model
    The GBX20 is a backlit LCD extension module supported by the GXV3350 and...

    GXP2200EXT

    GXP2200EXT

    GXP2200 EXT
    Expansion Module
    Equip any desktop with superior call control, network visibility and in-call...