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Cisco

Cisco VG400-4FXS/4FXO | Analog Voice Gateway | 4 FXS + 4 FXO | 2x 1G RJ-45 | SIP | T.38 Fax | SRST

SKU:VG400-4FXS/4FXO

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Description

Branch analog voice gateway providing 4 FXS and 4 FXO ports to connect analog devices and local PSTN lines to IP telephony. Dual 10/100/1000 RJ-45 uplinks, SIP interoperability, T.38 fax, VLAN/QoS, and SRST for continuity during WAN loss. Suitable for retail, healthcare clinics, and remote offices.

Features

- 4 FXS + 4 FXO for flexible analog and PSTN integration
- Dual 1G Ethernet uplinks
- SIP interoperability with enterprise platforms
- T.38 fax support and robust DTMF handling
- QoS and VLAN for consistent voice quality
- SRST for resilient branch telephony

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Can this connect to both analog devices and PSTN lines?
A: Yes. FXS ports connect analog phones/fax machines; FXO ports connect to PSTN trunks.

Q: Which protocol is supported for call control?
A: SIP is supported for enterprise call control and SIP trunks.

Q: Is fax supported?
A: Yes, T.38 fax relay and passthrough are supported.

Q: Does it support survivability?
A: Yes, SRST provides basic call features during WAN outages.

Q: What are the Ethernet uplink speeds?
A: Two auto-negotiating 10/100/1000 Mbps copper ports.

Technical Specifications

- Analog interfaces: 4x FXS, 4x FXO
- Network uplinks: 2x 10/100/1000BASE-T (RJ-45)
- Call control: SIP
- Survivability: SRST support
- Fax: T.38 and passthrough
- Codecs: G.711 a/u-law, G.729a/b
- DTMF: RFC 2833 and in-band
- Security: TLS/SRTP (config dependent)
- Management: Web/CLI, SNMP, syslog
- QoS: LLQ, policy-based QoS, VLAN tagging
- Form factor: Desktop or rack-mount (with kit)

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