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Retell 540 Pro Answering Machine reviews

  • 11 Apr 2006
  • Digital Announcement

Product Information

product specification
Loudspeaker No
Caller display No
SIP-Standard (Session Initiation Protocol) No
ISDN Port No
Ethernet connection No
USB No
Bluetooth No
Release date 11 Apr 2006
H.323 VoIP-Protocol No
IP Phone No
System Phone No
Recording System Digital Announcement
Hands-Free Functionality No
Polyphonic ringtones No
SMS function No
Backlight illumination No