Cortelco 2420 Telephone User Manual


 
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Industry Canada Information
NOTICE: The Industry Canada label identifies certified equipment. This certification means that the equipment meets
certain Telecommunications network protective Operational and safety requirements. Industry Canada does not guarantee
the equipment will operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local
telecommunications company. The equipment must also be installed using an acceptable method of connections. The
customer should be aware that compliance with the above conditions might not prevent degradation of service in some
situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier.
Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the
telecommunications company cause to request the user to disconnect the equipment.
Warning! Users should not attempt to make such connections themselves, but should contact the appropriate electric
inspection authority or electrician as appropriate.
Caution: The Ringer Equivalence Number (REN) assigned to each terminal device provides an indication of the maximum
number of terminals allowed to be connected to a telephone interface. The termination on an interface may consist of any
combination of devices subject only to the requirement that the sum of the Ringer Equivalence Numbers of all the devices
does not exceed 5. The REN Number of the unit is 0.7.
Operation is subject to the following two conditions: (1) This device may not cause interference, and (2) this device must
accept any interference including interference that may cause undesired operation of the device.