Cortelco Single-Port Analog Terminal Adaptor

(Model # 821121-ATA-PAK)

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Single-port analog terminal adaptor.

Features:

SIP standardization
One Voice Port (RJ-11)
Call switching between VoIP and PSTN calls
Supports FSK Caller ID, hold, call waiting, call transfer and call forward
PSTN line default in case of power failure

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