Algo has just released the Algo 8305 Multi-Interface IP Paging Adapter and scheduler for legacy communications systems.
Connect the Algo 8305 IP Multi-Interface Paging Adapter to a telephone port (FXS) on a legacy communication system to bridge analogue paging systems and IP environments.
Key Features:
- SIP-compliant, PoE
- Schedule bells, tones, and automated announcements
- Telephone port that emulates an analogue telephone (connects to an FXS port on a legacy communication system)
- 8 Ω output port (connect to self-amplified speakers)
- Configurable via user-friendly web interface or auto-provisioning
The Algo 8305 has the same scheduling and SIP extension capabilities as the Algo 8301. It is also Microsoft Teams compatible via the Teams to SIP gateway for future proofing.


The 8305 is the ideal paging adapter for integrating legacy communication systems that contain an FXS port. It is very similar to the 8301, however, it was explicitly designed to create a hybrid VoIP environment by emulating an analog telephone.
The 8305 has a telephone port that connects to legacy communications with an FXS port. There is also an 8 W Output terminal block to connect one or many external self-amplified speakers connected in parallel with a total minimum resistance of 8 W.

Key differences between the 8301 vs 8305 vs 8373
| 8301 | 8305 | 8373 | |
| When to Choose | When working to integrate legacy paging amplifiers to an IP based systems. This is the go-to adapter for most set ups and needs. | When working to integrate legacy communication systems (specifically ones that have FXS and need to connect to a telephone/FXO port) to an IP based system. | When working to integrate a legacy zoned paging amplifier (up to three groups of analog speakers to retain zoning infrastructure) to an IP based system. |
| Multicast | Yes | Yes | Yes |
| PoE | Yes | Yes | Yes |
| SIP compliant | Yes | Yes | Yes |
| Scheduler | Yes | Yes | No |
| Ports | • Aux In • Aux Out • XLR Line In • XLR Line Out • Terminal block Line In • Terminal block Line Out • Terminal block • Relay In • Terminal block Relay Out | • Aux Out • Telephone Port • Terminal block 8 W Out • Terminal block Line Out • Terminal block Relay In • Terminal block Relay Out | • XLR Line Out • Terminal block Line Out • Terminal block Relay Out • Terminal block Channel 3 (SHLD/-/+) • Terminal block Channel 2 (SHLD/-/+) • Terminal block Channel 1 (SHLD/-/+) • Terminal block Amp In (SHLD/-/+) |
| Supports an analogue telephone | No | Yes | No |
| Supports multiple analogue speaker zones | No | No | Yes |
| SIP Extensions | • 50 Page (Capable of talkback when appropriate speaker and microphone connected) • 10 Emergency Alert • 10 Ring | • 50 Page • 10 Emergency Alert • 10 Ring | • 50 Page |
| Third party | • RESTful API • Poly Group Page • Singlewire InformaCast (additional license required) • Syn-Apps Revolution • Microsoft Teams | • RESTful API • Poly Group Page • Singlewire InformaCast (additional license required) • Syn-Apps Revolution • Microsoft Teams | • RESTful API • Poly Group Page • Microsoft Teams |
In most applications where the legacy amplifier does not have dedicated speaker zones behind the amplifier, the 8301 is the ideal choice. However, where organizations utilized zoned paging amplifiers, the 8373 is required to retain legacy speaker zones behind the amplifier.
For any Algo queries, please contact us or call on 1300799115.















