
Mediatrix 4102 / 4102S
Connect two analog endpoints to an IP voice service.
- Selection criterion
- Endpoint behavior, carrier compatibility and fax requirements.
A complete gateway portfolio for connecting analog devices, legacy PBXs, PRI, BRI, FXS and FXO services to secure SIP and cloud voice infrastructure.

A starting point for your project. Review the model data sheet before ordering.

Connect two analog endpoints to an IP voice service.

A compact gateway for a small analog or mixed-interface installation.

Bridge a legacy PBX or digital trunk to SIP.

Bring multiple analog extensions onto an IP network.
A product decision is only correct when both sides of the interface, the security boundary and the operating model are considered together.
Local phones, a local IP PBX, Mediatrix gateways and Sentinel can exchange SIP calls entirely inside the organization. The voice path can remain on a private LAN, VLAN, campus network or isolated operational network.
An external connection is used only when calls must reach public numbers, remote sites or hosted services. If the required call path is entirely local, the system can stay on the private network.
The gateway provides the analog station interface and converts the call to SIP.
T.38 or G.711 behavior must be accepted by the carrier and tested end to end.
Data-over-audio is sensitive to codecs, jitter and packet loss and may require pass-through testing.
Select the physical interface and density that match the endpoint, PBX or trunk in the field.
Controls extensions and internal routing on the private network. It may remain fully on-premises.
Provides telephone numbers and PSTN connectivity.
Hosted call control is reached through the correct SIP and SBC architecture.
Conceptual architecture — final topology, capacity and interface configuration require validation.
Port count alone is not enough. Endpoint behavior, line length, signaling, fax or modem transport, power and carrier acceptance all affect the final choice.
Always validate the exact SKU, interface modules and supported endpoint behavior before ordering or replacing an active line.| Selection factor | 4102 / 4102S | C7 Series | G7 Series | S7 / S7 LP |
|---|---|---|---|---|
| Primary role | Two-port analog adapter | Compact multi-interface gateway | Digital and analog media gateway | High-density FXS gateway |
| Interfaces | 2 FXS | FXS / FXO / BRI by model | PRI / BRI / FXS / FXO by model | 16 or 24 FXS |
| Deployment fit | Small site or single service | Branch and mixed legacy edge | PBX and TDM modernization | Campus and high-density analog |
| Special consideration | Fax / modem validation | Exact model configuration | Trunk and channel design | S7 LP for validated long-loop needs |
Share the product, deployment and target outcome. M5 will identify the right technical and commercial path.