COMpact 6VoIP-Modul Adds six VoIP channels for internal IP telephony and internet telephony. Provides additional codecs with voice compression to ensure optimum sound quality, even for smaller bandwidths for all eight channels. Specifications: COMpact 6VoIP Module Operating voltage from the COMpact unit Installation slot inside the COMpact 5020 VoIP External mode up to 6 VoIP channels, PTMP or PTP connection (SIP-Trunking) Internal mode up to 6 VoIP channels VoIP standard SIP as per RFC 3261 VoIP codecs external G.711, G.723.1, G.726, G.729A/E, iLBC VoIP-Codecs internal G.711, iLBC Fax over IP T.38 as per ITU-T Dimensions (w x h x d) 52 mm x 53 mm x 3 mm Weight approx. 12 g Safety CE