گوشی آی پی فون اسپاد ES-AV800

نقد و بررسی گوشی آی پی فون اسپاد ES-AV800

Android Video IP Phone ESPOD ES-AV800

A VoIP phone or IP Phone uses Voice over IP technologies for placing and transmitting telephone calls over an IP network, such as the Internet, instead of the traditional public switched telephone network (PSTN). Digital IP-based telephone service uses control protocols such as the Session Initiation Protocol (SIP), Skinny Client Control Protocol (SCCP) or various other proprietary protocols.

مشخصات فنی گوشی آی پی فون اسپاد ES-AV800:

• Type : IP Phone ESPOD
  
• Support 2.0 and correlative RFCs
• 4 SIP accounts
• The ability to simultaneously login to all server
• Video codecs: H.263, H.264, MPEG4,Video
• resolution: QCIF, CIF, QVGA
• Photo Format: PEG GIF and BMP PNG
• Video formats: MP4, 3GP and FLV
• Echo cancellation: G.168 compatible with the LEC, including hands-free (AEC),VGS, VAD, CNG     
• Speakerphone full-duplex
• Possibility of registering a domain or implementation of SIP calls peer to peer
• Modes DTMF inband
• Can be used for custom ring tones
• Support for STUN
• Support for the SIP SMS
• Adjusting the volume in all modes