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SIP audio boards are network-enabled modules that convert standard speakers or intercoms into IP-based audio devices for paging, intercom, and intercom systems, often supporting PoE, two-way audio, and SIP/ONVIF protocols. Top options include the Speco SPIP100M (approx. $130), Speco SPIP200M in enclosure (approx. $210-$230), and Fanvil PA2S gateway (approx. $125).
Key Features and Capabilities:
- Networking: PoE (Power over Ethernet) support allows for single-cable deployment.
- Audio Quality: Supports high-quality audio codecs, such as 48k OPUS, for clear communication.
- Integration: Compatible with SIP and ONVIF, making them suitable for IP surveillance and VoIP phone systems.
- Intercom/Paging: Enables two-way communication and pre-recorded messages (WAV/MP3).
- Hardware Interface: Typically includes interfaces for microphone, speaker (8 ohm), GPIO for alarms, and relays.
These boards are ideal for DIY projects, building custom intercoms, or upgrading analog audio systems to networked IP solutions.
Note: The term "SIP" in audio boards refers to Session Initiation Protocol for VoIP, which is distinct from "Solo in Place" used in audio engineering, as explained in this Sweetwater article.
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Web results
Tonmind SIP PCB Board For IP Speaker Intercom Door ...
Tonmind
https://www.tonmind.com › IP Board
Tonmind
https://www.tonmind.com › IP Board
The SIP PCB Board has interface of MIC, Speaker, Alarm input and Reset. It's powered via PoE or DC 12V/24V. It's compatible with VoIP devices and ONVIF VMS.Read more
SIP Speaker Board HZ-TB11 - HeoZ
heoztech.com
https://www.heoztech.com › sip-speaker-board-hz-tb11
heoztech.com
https://www.heoztech.com › sip-speaker-board-hz-tb11
The HZ-TB11 is a small, high-quality SIP horn speaker board made for smart audio terminals, intercoms, and industrial communication systems.Read more
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People also ask
Is the SIP protocol still used?
Yes, SIP is still widely used today. As more businesses move away from traditional phone systems and adopt VoIP (Voice over Internet Protocol), SIP continues to be a key player in facilitating internet-based communications.Jul 4, 2025
What is SIP | Session Initiation Protocol Meaning - 3CX
3CX
https://www.3cx.com › pbx › sip
3CX
https://www.3cx.com › pbx › sip
How does SIP intercom work?
How an SIP Intercom Works
- A visitor approaches the SIP intercom and presses the call button for a resident, sending an SIP INVITE request to the PBX.
- The PBX determines who should receive the call and rings their phone.
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Apr 18, 2026
SIP Intercom System: What It Is + Top 2026 Options - Swiftlane
Swiftlane
https://swiftlane.com › blog › sip-intercom-system-what-i...
Swiftlane
https://swiftlane.com › blog › sip-intercom-system-what-i...
Web results
Sip Audio Board(501)
Alibaba.com
https://www.alibaba.com › ... › Receivers & Amplifiers
Alibaba.com
https://www.alibaba.com › ... › Receivers & Amplifiers
Enhance one's home entertainment system with high-quality sip audio board, delivering superior sound and seamless connectivity for an immersive experience.
 store rating (346)
Mic'd Up with Mike - N-SP80SB SIP Audio PCB Board
YouTube · TOA Canada Corporation
300+ views · 3 years ago
YouTube · TOA Canada Corporation
300+ views · 3 years ago
N-SP80SB is a SIP-compliant hands-free Voice over IP (VoIP) PCB board that offers flexible audio communications using standard SIP protocol.
N-SP80SB | N-SP80 SIP Intercom Station | Products
TOA Canada
https://www.toacanada.com › en-ca › products › detail
TOA Canada
https://www.toacanada.com › en-ca › products › detail
N-SP80SB is a SIP-compliant hands-free Voice over IP (VoIP) PCB board that offers flexible audio communications using standard SIP protocol.Read more
SIP multi channel analog audio gateway : r/VOIP
Reddit · r/VOIP
9 comments · 3 years ago
Reddit · r/VOIP
9 comments · 3 years ago
I need to bridge multiple SIP connections to multiple analog IO and can't find a good (not crazy expensive) way to do it.Read more
Nick Wood talks to you about Insight SIP Audio Demo Board
InsightSIP
https://www.insightsip.com › news › what-s-new › 662-n...
InsightSIP
https://www.insightsip.com › news › what-s-new › 662-n...
This video gives an overview of BLE Audio covering what it is, what are the key enhancements to the BLE specification and other elements that enable it.Read more
What are PFL, AFL and SIP?
Sweetwater
https://www.sweetwater.com › Home › Articles
Sweetwater
https://www.sweetwater.com › Home › Articles
Jun 22, 2018 — SIP stands for solo in place and is also known as stereo AFL (After-Fade Listen). Solo in place is more commonly used for recording applications ...Read more
Sinrey SIP PCB Board for IP Speaker Intercom
sinrey
https://www.sinrey.com › ... › IP PA System
sinrey
https://www.sinrey.com › ... › IP PA System
This highly integrated PCB module deeply supports the standard SIP protocol, giving terminal equipment professional-grade voice communication capabilities.Read more
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