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Cisco

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

SKU:VG400-2FXS/2FXO

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Description

Compact analog voice gateway with 2 FXS and 2 FXO ports for branch sites that need both analog endpoints and PSTN connectivity. Dual 10/100/1000 RJ-45 uplinks, SIP interoperability with enterprise call control or SIP trunks, T.38 fax, QoS, and SRST for resilience during WAN outages. Ideal for small offices, retail, and remote sites.

Features

- Mixed 2 FXS + 2 FXO for flexible analog/PSTN needs
- Dual 1G Ethernet uplinks
- SIP interoperability with enterprise telephony
- T.38 fax support
- QoS and VLAN for voice quality
- SRST for branch resilience

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: Does this support both analog phones and PSTN lines?
A: Yes. Use FXS for analog phones/faxes and FXO for PSTN trunk connectivity.

Q: Which call control protocols are supported?
A: SIP is supported for registration to enterprise call control or SIP trunking providers.

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

Q: Is SRST supported?
A: Yes, SRST provides basic call survivability if the WAN link is down.

Q: What Ethernet speeds are available?
A: Two 10/100/1000 Mbps copper interfaces.

Technical Specifications

- Analog interfaces: 2x FXS, 2x 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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