Cisco VG224 Analog Voice Gateway
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You don’t have to replace your entire phone system as you move to unified communications. Cisco VG Series Gateways help you migrate at your own pace and budget by taking full advantage of the investments you have already made. Cisco VG Gateways allow you to enjoy the benefits of unified communications while using your existing analog phones and fax machines.
The Cisco VG224 Analog Voice Gateways allow you to use your IP telephony solution with traditional analog devices while taking advantage of the productivity afforded by IP infrastructure.
Cisco VG224 Analog Gateway:
- Standalone solution for medium-density for deployments of 24 lines or less
- Combines a high-density RJ21 analog interface with Cisco IOS Software manageability to increase the functionality of analog equipment
- Offers gateway capabilities for analog voicemail systems
- Housed in a compact, 19-inch rack-mount chassis
Cisco Unified Communications enables organizations to collaborate more effectively - helping them streamline business processes, reach the right resource the first time, and improve productivity and profitability. Cisco offers an end-to-end unified communications and collaboration solution that includes network infrastructure, security, unified call control, endpoints, network management, and a lifecycle services approach. In addition, it offers flexible deployment models, outsourced management options, end-user and partner financing packages, and integration with third-party communications applications.
Cisco VG Series Gateways
The Cisco VG350, VG224, VG204XM, and VG202XM are part Cisco IOS software-based VG series stand-alone analog voice gateways. The Cisco VG350 is a high-density 160-port gateway, the Cisco VG224 is a 24-port gateway, and the Cisco VG204XM and VG202XM are low-density 4- and 2-port gateways, respectively. These gateways connect analog phones, fax machines, modems, and speakerphones to an enterprise voice system based on Cisco Unified Communications Manager (Unified CM). Having these devices tightly integrated with the IP-based phone system is advantageous for increased manageability, scalability, and cost-effectiveness (refer to Figure 5 later in this document). Commercial businesses can also use these gateways with Cisco Unified Communications Manager Express to effectively augment an integrated-services-router (ISR) environment. Both topology environments support business needs ranging from high to low concentrations of analog voice ports for modem calls, fax calls, and analog supplementary services.
The Cisco VG350, VG224, VG204XM, and VG202XM offer Cisco IOS Software manageability on analog phone lines so that you can use them as extensions to your Cisco or 3rd party IP call control solution. The Cisco VG350 and VG224 offer 19-inch rack-mount chassis, and the Cisco VG204XM and VG202XM offer desktop form-factor chasses with a fanless design.
Features and Benefits:
- Cisco IOS Software-based hardware: The hardware includes uniform Cisco command-line interface (CLI) and Simple Network Management Protocol Version 3 (SNMPv3) support for ease of gateway configuration and operation.
- Robust voice quality: Cisco experience in providing toll-quality packet-voice service helps ensure that the Cisco VG350, VG224, VG204XM, and VG202XM provide the clear, robust voice quality end users have come to expect from telephony services.
- Investment protection: You can continue to use your existing analog phones, fax machines, and modems while taking advantage of IP telephony. Basic analog phone connectivity is needed when the infrastructure (wiring) or application does not support or require IP phones. The Cisco VG350 and VG224 offer ideal platforms to support centralized analog phone-line deployments, and the Cisco VG204XM and VG202XM are ideal platforms to support sparsely concentrated, distributed analog phone deployments. Thus you can deploy IP telephony without having to purchase IP phones for all users and you can continue using existing devices. You can also use the Cisco VG350 and VG224 in a Cisco Unified Communications Manager Express environment and migrate to a Cisco Unified Communications Manager deployment with 100-percent investment protection.
- High availability: With these gateways you will experience less voice downtime due to WAN link failure. The Cisco VG350, VG224, VG204XM, and VG202XM have built-in Media Gateway Control Protocol (MGCP) failover to an H.323 connection to a Survivable Remote Site Telephony (SRST) router. This failover maintains voice service for analog endpoints if the WAN link fails or you lose connectivity to the Cisco Unified Communications Manager, Cisco Business Edition or Cisco Hosted Collabortion Solution. The Cisco VG350 is built on the Cisco Integrated Services Routers Generation 2 (ISR G2) platform powered by high-performance multicore processors. In this platform, you can achieve power redundancy by installing an optional integrated redundant power supply (RPS), which helps decrease network downtime and protects the network from power-supply failures. The Cisco VG224 offers high availability during power failure using an external 12-VDC UPS for battery backup.
- Reduced barrier to entry: These analog phone gateways provide a low-cost alternative for low-end analog phones and allow you to take advantage of IP telephony with a lower overall IP telephony investment.
Figure 1. Cisco Voice Gateway Integration with Cisco Unified Communications Manager
Figure 2. Cisco Voice Gateway Integration with Cisco Unified Communications Manager Express
Fax and Modem Connectivity
- The Cisco VG350, VG224, VG204XM, and VG202XM support fax machines and modems. When using fax machines, they support Cisco Fax Relay, T.38 fax relay, and fax pass-through. Cisco and T.38 fax relay technologies allow transfer of faxes across the network with high reliability using less bandwidth than a voice call. All modems can be connected to the Cisco VG350, VG224, VG204XM, and VG202XM and are transferred over the network using modem pass-through.
Analog Phone Connectivity:
The Cisco VG350, VG224, VG204XM, and VG202XM are ideal for analog phone deployments ranging from centralized to sparsely concentrated or distributed topologies. These analog voice gateways provide a high level of availability at locations with MGCP fallback, with ease of manageability using Cisco IOS Software monitoring features. They offer many supplementary analog calling features depending on the call control and signaling type used. Refer to Table 1 for the supplementary analog calling features available.
|Analog Supplementary Features Available on Analog Voice Gateways|
|Feature||Skinny Client Control Protocol (SCCP) Features with Cisco Unified Communications Manager||SCCP Features with Cisco Unified Communications Manager Express||Session Initiation Protocol (SIP) Features with Cisco Unified Communications Manager|
|Call forward all|
|Call forward busy|
|Call forward cancel|
|Call forward no answer|
|Call hold or resume|
|Call pickup group|
|Call pickup local|
|Call transfer blind|
|Call transfer consultative|
|Caller ID on call waiting|
|Malicious caller ID|
|Conference call||Up to 3 parties||Up to 3 parties||Up to 3 parties|
|Ad hoc conference call||Up to 3 parties||Up to 3 parties|
|Meet-Me conference call|
|Directed call park|
|Directed call pickup|
|Directed call pickup of ringing extension|
|Music on hold|
|Shared line privacy|
|Precedence and preemption|
|Call back on busy|
|DC voltage Visual Message Waiting Indicator) VMWI||(only for foreign exchange station [FXS] on VG224)|
*Simultaneous ringing, hold, and resume across analog and IP phone
The Cisco VG350, VG224, VG204XM, and VG202XM support feature access codes (FACs) in conjunction with Cisco Unified Communications Manager and Cisco Unified Communications Manager Express. Refer to documentation for these applications for details.
The voice gateways support the following protocols:
- Real-Time Transport Protocol (RTP)
- Secure Real-Time Transport Protocol (SRTP)
- Trivial File Transfer Protocol (TFTP)
- HTTP server
- Simple Network Management Protocol (SNMP)
- Dynamic Host Configuration Protocol (DHCP)
- Domain Name System (DNS)
- Cisco Unified Communications Manager or Cisco Unified Communications Manager Express redundancy support using Hot Standby Router Protocol (HSRP)
- Call survivability - MGCP failover to an H.323 connection to the SRST router
- Cisco Fax Relay, T.38 fax relay, and modem pass-through
- Coder/decoder (codec) support, G.711, and G.729a
- RADIUS and TACACS+ for Telnet and authorization
|Category||VG350||VG224||VG204XM and VG202XM|
|Processor||High-performance multicore processors||RISC processor||Power QUICC (power PC-based) processor|
|Memory (default)||1-GB synchronous dynamic RAM (SDRAM)||256-MB SDRAM||256-MB double data rate 2 (DDR2) RAM|
|Compact Flash||256 MB||128 MB, one slot Type II||128-MB NAND Flash|
|Ethernet||Up to three 10/100/1000 Ethernet WAN ports are supported
Two of the 10/100/1000 Ethernet WAN ports can support Small Form-Factor Pluggable (SFP)-based connectivity instead of RJ-45 ports, enabling fiber connectivity
|Two 10/100BASE-T Ethernet ports||Two 10/100BASE-T Ethernet ports|
|Console and auxiliary (maximum)||A new, innovative, mini-B USB console port supports management connectivity when traditional serial ports are not available
Traditional console and auxiliary ports are also available
|Up to 119.2 kbps per port||Up to 115.2 kbps per port|
|AC input voltage||100- to 240-VAC autoranging||100 to 240 VAC||100 to 240 VAC|
|AC input current (maximum)||7.1 to 3.0 amps||1 amp||0.5 amp|
|DC input voltage||-||12V||12V|
|Frequency||47 to 63 Hz||50 to 60 Hz||50 to 60 Hz|
|Power dissipation||230 watts (maximum consumption) (power supply rated for 540W capacity)||60W||30W|
|Redundant power supply||Optional integrated RPS||External 12-VDC UPS||-|
|Width||17.25 in. (438.15 mm)||17.5 in. (444.5 mm)||8.81 in. (223.8 mm)|
|Height||5.25 in. (133.35 mm)||1.75 in. (44.4 mm) (add 0.17 in. for optional rubber feet)||1.78 in. (45.2 mm) with rubber feet|
|Depth||18.75 in. (476.25 mm)||13.5 in. (342.9 mm)||8.13 in. (206.5 mm)|
|Weight (maximum)||48.08 lb||11 lb (4.106 kg)||2.98 lb (1.351 kg)|
|Mounting||3 rack units (3RU), 19 in.; EIA 23 in.||Rack- and wall-mountable||Desktop- and wall-mountable|
|Operating temperature||32 to 104ºF (0 to 40ºC)||32 to 122ºF (0 to 50ºC)||32 to 104°F (0 to 40°C)|
|Nonoperating temperature||-40 to 158ºF (-40 to 70ºC)||-40 to 185ºF (-40 to 85ºC)||-22 to 149°F (-30 to 65°C)|
|Operating humidity||5 to 95%||5 to 95% noncondensing||10 to 85% noncondensing|
|Noise level (maximum)||Sound pressure: 57.6 dB typical, 77.6 dB maximum
Sound power: 67.8 dB typical, 84.7 dB maximum
|38-dbA @ 3 ft (0.914m)||No fan, 0 db|
|On- or off-premises||On-premises only, restricted access area, permanent ground required, to be installed and serviced only by trained professionals||On-premises only, restricted access area, permanent ground required, to be installed and serviced only by trained professionals||On-premises only, permanent ground required, to be installed and serviced only by trained professionals|
|Cisco IOS Software Release||15.2(4)M or later||12.3(4)T or later||15.3(2)T or later|
|Cisco Unified Communications Manager version||8.6.2(SU2), 9.0.1, or later||3.3.3 SR2 or later||6.1.3, 7.0.1 or later|
|Cisco Unified Communications Manager Express version||7.1, 8.0, or later||4.3.2 or later||7.0.1 or later|
|Tip and Ring Interfaces for Each FXS Port (SLIC)|
|Interface type||FXS (on-premises connection only) (RJ-21)
(Optional high-speed WAN interface card [HWIC] FXS modules on motherboard have RJ-11 connectors.)
|FXS (on-premises connection only)||FXS (on-premises connection only)|
|Address signaling formats||In-band dual tone multifrequency (DTMF)
Out-of-band pulse (8-12 pulses per second [pps])
Out-of-band pulse (8-12 pps)
Out-of-band pulse (8-12 pps)
|FXS signaling formats||Part numbers SM-D-72FXS and SM-D-48FXS-E support loop-start and ground-start signaling.
HWIC slots on motherboard support FXS loop-start, ground-start, and DID signaling
|Loop-start and ground-start signaling||Loop-start and ground-start signaling|
|FXS loop resistance||Up to 600 ohms (including phone or terminal equipment) for short-loop-length port
Up to 1400 ohms (including phone and terminal equipment) for long-loop-length port
|Up to 600 ohms (including the phone or terminal equipment)||Up to 600 ohms (including the phone or terminal equipment)|
|Direct inward dialing (DID) loop resistance||Up to 1800 ohms (including terminal equipment)||-||-|
|On-hook voltage||-44V||-43 V||-43 V|
|Off-hook loop current||25 mA (maximum) for short-loop-length port
35 mA (maximum) for long-loop-length port
|25 mA (maximum)||25 mA (maximum)|
|Ring tone||Configurable for different country requirements||Configurable for different country requirements||Configurable for different country requirements|
|Ring voltage||54 Vrms into 5 ringer equivalence numbers (RENs) at zero-loop-length port (balanced) (short-loop-length port)
62 Vrms into 2 RENs at zero-loop-length port (balanced) (long-loop-length port)
|50 Vrms into 5 RENs at zero-loop-length port (balanced) if no DC offset||50 Vrms into 5 RENs at zero-loop-length port (balanced) if no DC offset|
|Ring frequency||20, 25, 30, and 50 Hz||20, 25, 30, and 50 Hz||20, 25, 30, and 50 Hz|
|Ring waveform||Sine wave if no DC offset||Sine wave if no DC offset
20 and 24 VDC offset trapezoidal
|Sine wave up to 35-VDC offset|
|Ring load||-||5REN with no DC offset
2REN with DC offset
|5REN with no DC offset
2REN with DC offset
|REN loading||5 REN per port (short-loop-length port)
2 RENs per port (long-loop-length port)
(maximum 40 total RENs loads per each SM-D-72FXS module; maximum 30 total RENs loads per each SM-D-48FXS-E module)
|5 RENs per port, 12 RENs per system (maximum)||5 RENs per port, 12 RENs per system (maximum)|
|RJ-11 FXS port terminating impedance option||600c, 600r, 900c, 900r, complex1, complex2, complex3, complex4, complex5, and complex6||600-ohm complex, 600-ohm real, 900-ohm complex, 900-ohm real, complex1, and complex2||600-ohm complex, 600-ohm real, 900-ohm complex, 900-ohm real, complex1, and complex2|
|Disconnect supervision||Power denial (calling party control and far-end disconnect)||Power denial (calling party control and far-end disconnect)||Power denial (calling party control and far-end disconnect)|
|Caller ID||On-hook transmission of frequency-shift-keying (FSK) data||On-hook transmission of FSK data||On-hook transmission of FSK data|
|FXS loop Length||Short-loop-length port 3000 ft, 26 AWG 5500 ft, and 24 AWG
Long-loop-length port 11,000 ft, 26AWG 18,000 ft, and 24 AWG
|3000 ft, 26 AWG||3000 ft, 26 AWG|
|Category cable||Category 3 and Category 5||Category 3 and Category 5||Category 3 and Category 5|
|Physical connector||RJ-21 and RJ-11||RJ-21||RJ-11|
|Number of connectors or ports||160 (144 using two SM-D-72FXS modules with RJ-21 connectors and 16 using FXS voice interface card (VIC) modules with RJ-11 connectors)||24 FXS ports||2 FXS ports on VG202XM 4 FXS ports on VG204XM|
|Mean time between failures (MTBF)||1,390,019 hours||195,671 hours||200,000 hours|
Download the Cisco VG Series Gateways Datasheet (PDF).
- Pricing and product availability subject to change without notice.
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