Cisco VG410 Hardware Installation Manual page 8

Features and Benefits
• Software Digital Signal Processor (DSP): The Cisco VG410 Voice Gateway chassis utilizes its built-in
CPU cores to handle the digital signal processing (DSP) tasks required for software implementation.
This means that the functionality typically provided by a separate DSP component is now distributed
among the CPU cores within the device. Further, the CPU cores effectively handle the necessary DSP
operations. The software DSP comes pre-installed as part of the manufacturing process.
• FXS-E (extended loops or long loops) support: The first 24 ports of all the SKUs on the new modules
support FXS-E with:
• Higher loop current (35 mA) to accommodate specialty phones
• Longer loop length for loops with 26 AWG wire, up to 11,000 feet (3400 meters)
• Higher ringing voltage (65 Vrms, no load)
In addition to these features, Cisco VG410 Voice Gateway supports the following features:
• Webex calling
• Caller line ID
• G.711, G.729a, G.729ab, and G.726
• G722, iLBC
• Fax pass-through and relay (T.38)
• Modem pass-through, Modem relay, and V.150.1 MER modem relay support
• DTMF detection
• Echo cancellation
• Voice activity detection
• Comfort noise generation
• Real-Time Control Protocol (RTCP)
• Acoustic shock protection
• Real-Time Transport Protocol (RTP)
• RFC 4733 Digit Relay
• Noise reduction
• Call Details Records (CDR)
• Support for Loop-start and Ground start signaling
• Support for interworking with Cisco Unified Communications Manager (CUCM): Skinny Client Control
Protocol (SCCP), Session Initiation Protocol (SIP), and Media Gateway Control Protocol (MGCP) 0.1
• Cable detection: GR909 line test
FXS Features
The FXS features include:
Cisco VG410 Voice Gateway Hardware Intallation Guide
2
Overview