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5.0 Connecting your Trunks
Trunks can be any of: Analog lines, PRI, or a T1 with a SIP connection. Details of each type are
briefly discussed below:
5.0.1 SIP & IAX2: Pure Voice‐over‐IP
SIP trunks are available in most areas of the country from a variety of reputable companies. IAX2 is
another VoIP protocol available from many of the same providers who sell SIP services. If possible,
please have your prospective SIP/IAX2 provider perform quality tests with you before committing
to a contract. Fonality Phone Systems are compatible with nearly all SIP provider services.
5.0.2 PRI: Voice T1
PRIs can be leased from any number of telecom companies. PRIs are “Voice T1” connections that
have been provisioned with a standard 23 voice channels and 1 data/signaling channel (North
America only). PRIs offer superior voice quality and features like Caller ID.
5.0.3 Analog Lines – Old Friends
Analog trunks are, of course, the most common type of connection to the PSTN (Public Switched
Telephone Network). The Fonality Phone System works with all standard analog circuits.
5.2 Connecting Analog lines
You should now connect all analog lines to the analog line ports on the back of your Fonality Phone
System. Be sure to use the colored analog line cables provided with your Fonality Phone System.
Normal analog phone cables will not work.