Adtran Total Access 916e (4243916F2) 3rd Gen + Lifeline FXO Credit Card Terminal and has two QSFP+ ports

and has two QSFP+ ports that operate at 40GbE for high speed uplinking

NEC PN-4RSTB MF Receiver Card Description:

16 line keys are included with the phone to provide a wealth of configuration options

or intercom keys added to the phone

Shoretel SG-220T1 Features:

Adtran Total Access 916e (4243916F2) 3rd Gen + Lifeline FXO Credit Card Terminal and has two QSFP+ portsAdtran TA916e 3rd Gen + Lifeline FXO Description: The Adtran 4243916F2 is a 3rd generation Total Access gateway that features the Lifeline FXO output. The 916e 3rd Gen (4243916F2) supports 16 FXS ports, two 10 100 Mbps interfaces as well as one Gigabit Ethernet interface. Adtran 4243916F2 Features: 16 FXS Ports Lifeline FXO Output 2 Fast Ethernet (10 100 Mbps) Interfaces 1 Gigabit Ethernet (10 100 1000 Mbps) Interface eSBC Functionality (Optional)