Modern IP audio systems are no longer limited to broadcasting announcements. In many projects, users also need two-way communication, system integration and the ability to keep audio records for later review.
The Tonmind SIP-S26H 15W IP Horn Speaker with MIC is designed for these more advanced network audio applications. In addition to IP paging and public address, it combines a built-in microphone, real-time audio recording and local storage in one compact network speaker.
With support for SIP, ONVIF, PoE, RTP Multicast and HTTP API, the SIP-S26H can be integrated into different IP communication, security and public address systems while providing flexible audio recording capabilities.
IP Horn Speaker for Paging and Two-Way Communication
The SIP-S26H features a built-in 15W amplifier and an integrated microphone, allowing the device to work as both an IP loudspeaker and a two-way communication endpoint.
It can be used for applications such as:
Public address and paging
Two-way voice communication
Emergency notifications
Security announcements
Remote communication
Scheduled audio broadcasting
Network audio distribution
Standard SIP protocol support allows the speaker to connect with compatible SIP servers, IP PBX systems and SIP paging platforms.
At the same time, ONVIF compatibility makes it suitable for integration with compatible video surveillance systems, VMS platforms and other security applications.
The speaker also supports IEEE 802.3af/at PoE, so both network data and power can be delivered through one Ethernet cable. This helps simplify installation, especially when the speaker is deployed together with IP cameras or other network devices.
Built-In Recording Makes IP Audio More Flexible
One of the useful features of the SIP-S26H is its ability to record audio directly on the device.
Instead of using a separate recording server for every application, the speaker can save recorded audio into its own built-in storage.
The SIP-S26H is available with 4GB or 8GB local storage, which can be used for both audio recordings and media files used for broadcasting.
This makes it possible to combine several functions in one device:
Broadcast + Intercom + Recording + Local Storage
For projects where audio needs to be transmitted and retained for later reference, this integrated design can simplify the overall system.
Two Recording Sources: Speaker Out and MIC In
The SIP-S26H provides different recording options depending on the application.
Recording Speaker Out Audio
When Speaker Out is selected as the recording source, the SIP-S26H records the audio being played through the horn speaker.
This can include audio such as:
Live paging messages
SIP communication
Network announcements
Broadcast audio
Training presentations
Other audio played through the speaker
This function can be useful when an organization needs to review previous announcements or keep a record of important voice communications.
For example, a school may want to retain an important campus announcement, while a company may need to review audio related to an internal communication or training session.
Recording MIC In Audio
The SIP-S26H can also record audio received through its microphone.
Because the speaker includes a built-in MIC, surrounding voice can be captured and stored directly in the device.
This expands the role of the speaker beyond traditional one-way broadcasting.
In a classroom, meeting area or training environment, for example, the microphone can capture live speech while the device stores the recording locally for later playback.
The result is a more flexible network audio endpoint capable of both delivering and capturing sound.
4GB and 8GB Local Storage Options
Different IP audio projects have different storage requirements. For this reason, the SIP-S26H offers 4GB and 8GB built-in storage options.
The internal storage can be used for:
Voice recordings
Pre-recorded announcements
Warning messages
Background music
Notification audio
Other media files used by the IP speaker
For applications involving frequent recording or a larger audio library, the higher-capacity version provides additional storage flexibility.
Because recordings and broadcast media can both be stored locally, users may reduce the need for additional storage devices in some installations.
Search Recordings by Date and Time
Recording audio is only useful when users can easily find the required file afterward.
The SIP-S26H includes a Record Playback function in its web interface, allowing authorized users to locate stored recordings according to their recording date and time.
A typical process is:
Web Interface → Record Playback → Select Date and Time → Find Recording → Playback
This makes it much easier to retrieve a particular recording compared with manually checking a large number of audio files.
For example, if users need to review audio from a specific lesson, meeting or training session, they can search according to the approximate time when it took place.
How to Configure Audio Recording
The recording function can be managed directly through the SIP-S26H web interface.
Step 1: Connect the Speaker to the Network
Make sure the SIP-S26H is properly powered and connected to the network.
Enter the speaker's IP address into a web browser and log in to its web management interface.
Step 2: Open the Recording Settings
Go to:
Advanced → Record
From this page, users can configure the relevant recording settings and select the required audio source.
Because the settings are available through the built-in web interface, additional software is not required simply to configure the recording function.
Step 3: Review Stored Audio
To find previously recorded audio, open the Record Playback section.
Users can then select the required date or time range and play back the corresponding recording.
This web-based operation makes daily recording management straightforward for system administrators.
Application in Schools and Educational Facilities
Schools increasingly use IP speakers as part of integrated campus communication and security systems.
The SIP-S26H can support normal campus functions such as:
Class change announcements
Emergency notifications
Scheduled messages
Campus paging
SIP intercom
Network broadcasting
Its recording function adds another possibility.
Lectures, teaching activities or other live audio can be captured through the built-in microphone and saved locally.
Afterward, authorized users can search for the audio according to its date and time.
Combined with RTP Multicast and scheduled broadcasting, the SIP-S26H can become part of a flexible IP audio infrastructure for classrooms and campus environments.
Application in Offices
In office and enterprise environments, the SIP-S26H can be used for both internal communication and audio documentation.
The speaker can broadcast announcements or support two-way communication while its recording function keeps relevant audio available for later review.
Potential applications include:
Internal meetings
Staff communication
Training sessions
Operational announcements
Presentation areas
Remote communication points
Instead of deploying separate devices for broadcasting and audio capture in suitable applications, businesses can combine multiple functions through one network audio endpoint.
Application in Training Centers
Training organizations often need to deliver audio clearly while also keeping recordings of lessons, demonstrations or presentations.
With its integrated microphone and internal storage, the SIP-S26H can provide a convenient solution for these environments.
It may be used in:
Corporate training rooms
Technical training centers
Educational institutions
Lecture areas
Employee training programs
Demonstration rooms
Recorded content can later be searched and replayed when trainers or participants need to review previous material.
Integration with IP Security and PA Systems
Recording is only one part of the SIP-S26H functionality.
The speaker also supports a range of network audio and integration features, including:
SIP communication
ONVIF integration
RTP Multicast
Pre-recorded messages
Scheduled broadcasting
HTTP API
Alarm input
IO output
DC 12V output
PoE power supply
Through SIP, the device can operate with compatible SIP servers and IP PBX platforms.
Through ONVIF, it can also be incorporated into compatible CCTV and video management environments.
RTP Multicast allows the same audio stream to be distributed efficiently to multiple network speakers, while the HTTP API provides additional possibilities for third-party control and automated audio triggering.
These capabilities make the SIP-S26H suitable not only for standalone paging but also for wider IP PA, intercom and security integration projects.
More Than a Standard Network Horn Speaker
A traditional horn speaker mainly performs one task: reproducing audio.
The Tonmind SIP-S26H extends this concept by combining IP broadcasting, microphone input, two-way communication, audio recording and local storage within the same device.
Its 4GB or 8GB built-in storage allows recorded audio and broadcast media to be kept locally, while the web interface makes it easy to configure recording and retrieve files by date and time.
For schools, offices, training facilities and other environments that need both network audio communication and audio recording, the SIP-S26H provides a practical all-in-one solution.
With support for SIP, ONVIF, PoE, RTP Multicast, HTTP API and scheduled broadcasting, it can also be integrated into a broader IP communication or security system, providing greater flexibility for modern network audio projects.