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provides busy tone detection for ABR
Max 10 per system (20 CO Lines)
(1) Intert-tel Axxess 550
It can easily expand to accommodate up to 6 incoming lines and 24 stations with the addition of two plug-in cards
Communicates with the TN775B maintenance circuit pack in an EPN to send the EPN environmental and alarm status to the SPE
Mitel 50004460 5310 IP Conference Saucer (Silver/Refurbished) Siemens provides busy tone detection forKey Features: Mfr. Part #: 50004460 Mitel 5310 IP Conference Saucer To add Conferencing to the 5220 5224 IP Phones
US$ 52.70
US$ 14.40
US$ 23.88
US$ 38.00
US$ 31.25
US$ 30.00
US$ 15.00
