Telephone Accessories
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E1/T1/J1 Digital VoIP Gateway
Grandstream E1/T1/J1 Digital VoIP Gateway Grandstream E1/T1/J1 Digital VoIP Gateway more
Grandstream Hybrid ATA with FXS and FXO Ports...
The HT813 is an analog telephone adapter that features 1 analog telephone FXS ... The HT813 is an analog telephone adapter that features 1 analog telephone FXS port and 1 PSTN line FXO port in order to offer backup lifeline support using a PSTN line. The integration of a FXO and FXS port enables this hybrid ATA to support remote... more
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