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The EXP40 Expansion Module for the SIP-T46G and SIP-T48G expands the functional capability of your SIP phone to a whole new level.
The EXP40 features a large graphic LCD with two pages of 20 flexible buttons, which can be programmed with up to 40 various features including BLF/BLA, speed dialing, call forwarding, transfer, park, pickup.
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