Presence of purely aesthetic defects evident on the chassis and on the screen, such as scratches, halos and/or luminance spots, the hardware is however tested, functional and guaranteed. (see product condition details) Purchase invoice: must be requested at the same time as the order and will be sent via email. In the absence of billing data, a receipt will be issued which cannot be cancelled. Attention: we are not responsible for the configuration and/or installation of the device, the hardware is supplied FORMATTED, the configuration is the responsibility of the buyer, please inquire before purchasing. - highly secure .te (encrypted) via Secure Real-Time Transport Protocol (SRTP) - Dual tone multi-frequency (DTMF), in-band and out-of-band (RFC 2833) (SIP INFO) - Integrated web server all.
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