Installing IP500/IP500 V2 Page 394
15-601042 Issue 28c (19 August 2013)IP Office 9.0
10.15.8 EF Port
These ports are found on the ETR6 base card. They are analog trunk ports that are only useable when the card is fitted
with an IP500 analog trunk daughter card. When in power fail, the EF ports are connected to trunk port 12.
10.15.9 ETR Port
ETR (Enhanced Tip and Ring) ports are provided by the ETR6 base card. They can be used for the connection of DTMF
analog phone devices and Avaya ETR phones.
· Paging to external paging equipment is not supported via ETR6 ports. It is supported via POT ports.
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