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Interoperability     
r   Configuring GXP Series with Asterisk
r   Configuring GXP Series with 3COM
r   Configuring GXP2000 BLF with Asterisk
r   Configuring GXP Series on Quadro LAN
r   Configuring GXP Series with Broadworks
r   Configuring GXP Series with 3CX
r   Configuring GXP2000 with Avaya Communications Manager
r   Configuring GXP1200 and GXP2020 with Avaya Communications Manager
r   Tekvizion SIP Certification Plan for Cisco CM5.0 for GXP2000
GXP2020 6-line Enterprise IP Phone Expansion Board
        The GXP2020EXT delivers additional functionality, versatility and flexibility to Grandstream’s GXP2020 and GXP2010 enterprise IP phone series. It is the ideal solution for offices that manage high call volumes or an office receptionist. By using the GXP2020EXT the telephone attendant can ensure maximum office productivity by efficiently monitoring and dispatching multiple incoming calls

        56 programmable buttons (each with dual color LED) and up to 112 programmable buttons when two extension modules are daisy chained together

         Supports for traditional call features on each of its programmable buttons, including BLF (busy lamp field), conference/call transfer/forward/pick up

Feature Specifications

Lines 56 up to 112 with 2 daisy chained GXP2020 EXT modules
Compatible Grandstream IP Phones GXP2020 and GXP2010
Feature Support Local feature-rich GUI with animation driven from the host GXP2020/GXP2010 phone; Multiple line/call appearances.
Firmware Upgrades Delivered by host phone. Host phone must support firmware 1.1.6.44 or higher versions
Cost-effective IP Solution Small to Medium enterprise office IP Phone
information
GXP2020 Front View
Front View
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          1.2.2.19

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