10/100M self-adaptive, support DHCP / Static IP setup, support LAN and WAN
Support SIP2.0 (RFC3261) and relative RFC
Support narrow band code: G.711a/u; wide band code: G.722
Support audio format: MP3, WAV
Support background music playback, emergency paging and alarm function
Made of high-quality fibre board, which is able to prevent resonant sound

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