Description
Four analog ports. One IP connection. The AudioCodes MediaPack 114 with four FXS ports handles four analog devices simultaneously — phones, fax machines, analog PBX trunks, or any combination — and delivers them all onto your SIP network with enterprise-grade voice quality. It's the go-to gateway for small offices, branch locations, and departments that need more than two analog ports but don't yet need a full rack-mounted solution.
The Telecom Spot Take
Four ports hits a sweet spot for a lot of real-world deployment scenarios: a small branch office with two desk phones, a fax machine, and a spare analog line for overhead paging. A professional services firm keeping four analog phones active during a SIP migration. A healthcare practice that must retain analog fax lines for regulatory reasons while moving everything else to hosted VoIP. The MP114/4S handles all of those with the same firmware and feature set as the rest of the MediaPack 11x series. Zero-touch provisioning via TFTP or HTTP means you can deploy units to remote locations without requiring on-site IT support — configure centrally, ship, plug in, and the gateway self-configures on first boot. Stand Alone Survivability keeps those phones working even if the WAN link goes down.
Key Features
- 4 FXS ports (loop-start): Connect four analog devices — phones, fax machines, or PBX analog trunks — to a SIP server or hosted VoIP platform.
- T.38 fax relay: Group 3 fax up to 14.4 kbps with automatic mode switching per call — reliable fax without a separate fax gateway.
- SIP, H.323, and MGCP support: Compatible with all major unified communications platforms, on-premises or hosted.
- G.711, G.723.1, G.726, G.729A codecs: Flexible codec selection for optimizing voice quality versus bandwidth on any network.
- G.168-2004 echo cancellation (128 ms): High-quality echo cancellation keeps every port sounding natural and clear.
- Zero-touch provisioning: Central configuration served via TFTP/HTTP — remote offices get a fully configured gateway without on-site setup.
- Stand Alone Survivability (SAS): Local call routing continues during WAN or SIP server outages, protecting business continuity at the branch level.
- Caller ID (international standards): Bellcore GR-30 (Bell 202 FSK), ETSI Type 1, NTT, and additional international Caller ID formats.
- AudioCodes CA Certificate (/CER): Factory-signed security certificate for authenticated SIP server connections.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | MP114/4S/SIP/CER |
| FXS Ports | 4 × FXS (loop-start) |
| Network Interface | 1 × 10/100Base-T Ethernet |
| Signaling Protocols | SIP (RFC 3261), H.323 v4, MGCP (RFC 3435) |
| Voice Codecs | G.711 (A-law, μ-law), G.723.1, G.726, G.729A/AB |
| Fax | T.38 (Group 3, up to 14.4 kbps), T.30 passthrough |
| DTMF | RFC 2833, SIP INFO, In-band |
| Echo Cancellation | G.168-2004, up to 128 ms tail length |
| Voice Quality | VAD, CNG, Dynamic Jitter Buffer |
| QoS | IEEE 802.1p/Q VLAN, DiffServ/TOS, RTCP-XR |
| Management | Web GUI, TFTP, HTTP/HTTPS, SNMP, Auto-provisioning |
| Caller ID | Bellcore GR-30 (Bell 202 FSK), ETSI Type 1, NTT, international variants |
| Ring Voltage | 54 VRMS typical (balanced ringing) |
| Ring Frequency | 25–100 Hz |
| Max Ringer Load | REN 3 |
| Dimensions (W × D × H) | 22 cm × 17.2 cm × 4.2 cm (8.7" × 6.8" × 1.7") |
| Weight | Approx. 0.5 kg (1.1 lbs) |
| Power | External AC adapter (included) |
| Certifications | FCC, CE, AudioCodes CA Certificate (/CER) |
| Vendor | AudioCodes |
Frequently Asked Questions
- Can I mix phones and fax machines on the same MP114/4S?
- Yes. Each FXS port is independent and can be connected to any analog device — a phone on port 1, a fax machine on port 2, another phone on port 3, and so on. T.38 fax and voice calls are handled per-port automatically.
- How does the MP114/4S handle a WAN outage?
- Stand Alone Survivability (SAS) keeps the gateway functional during WAN or SIP server failures. Locally registered analog devices can continue placing and receiving calls within the local survivability scope — critical for branch sites with limited WAN redundancy.
- What's the difference between the MP112 and MP114?
- Port count. The MP112 has 2 FXS ports; the MP114 has 4 ports and is available in FXS-only, FXO-only, or mixed FXS/FXO configurations. The underlying platform, feature set, and provisioning system are identical across the MediaPack 11x family.


