Tonmind IP Speaker software IPTool has been upgraded to latest version. It's available to be downloaded in our website via Support > Download Center > Software Upgraded version: IPToolCS20_20211119_173221 Improvement: • Optimize the setting layout. • Solve the issue that the RTP local audio source can not be played. • Modify the position of prompt tone in play list. There are 3 ways to connect Tonmind IP Speakers, SIP Paging Gateway. • Tonmind IPTool: Support Multicast Streaming • Tonmind PA System Lite: Support Multicast Streams, SIP (Server software) • SIP PBX server Compared to PA System Lite, IPTool is much more simple regarding function and operation. It depends on customer's need that if he need SIP or RTP Multicast. We plan to upgrade IPTool to RTP Audio Manager in the near future, adding function of zoning. IPTool is mainly for speaker configuration, while RTP Audio Manager will more focused on LAN cases (e.g. super market, stores) solution. Tonmind R&D Team has been devoted to upgraded firmware and software for better compatibility. The new version of Tonmind PA System Lite is estimated to be issued next week, which can be be server software. Besides, Tonmind IP Paging Speakers can be compatible perfectly with SIP PBX server, for instance Asterisk, Freeswitch, OpenPBX.

Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. VoIP allows you to make voice calls using a broadband Internet connection instead of a regular (or analog) phone line. VoIP services convert your voice into a digital signal that goes over the Internet. They transmit media streams using special media delivery protocols that encode audio and video with audio codecs and video codecs. Various codecs optimize the media stream based on application requirements and network bandwidth.  Some implementations rely on narrowband and compressed speech, while others support high-fidelity stereo codecs. The most widely used speech coding standards in VoIP are based on the linear predictive coding (LPC) and modified discrete cosine transform (MDCT) compression methods. Popular codecs include the MDCT-based AAC-LD (used in FaceTime), the LPC/MDCT-based Opus (used in WhatsApp), the LPC-based SILK (used in Skype), μ-law and A-law versions of G.711, G.722, and an open source voice codec known as iLBC, a codec that uses only 8 kbit/s each way called G.729. Tonmind IP Speaker supports SIP Protocol. It can be compatible to IP server PBX platforms perfectly including Asterisk, CallWeaver, FreeSwitch, OpenPBX, pbx4Linux, sipwitch, sipX, YATE. It also support RTP Multicasting, thus can work with Axis software. Their supporting codecs including various OPUS, G711U, G711A, G722, GSM, MP1, MP2, MP3, WAV, LPCM s16le. 48K OPUS Audio Codec enables excellent sound quality. Tonmind SIP Speakers Connecting to VoIP Diagram

IP Based Speaker is a type of loudspeaker that uses network to transmit audio. Compared to tranditional loudspeaker, IP Speaker is more flexible and clear, thus are widely used in commercial environment sush as stores, hospitals, schools, large venues, offices, hotels, transportation hubs, etc. IP Paging Speaker can transmit music, annoucements or emergency alerts in single or multiple zones. When comparing IP Speakers, there are some factors to consider. • Mounting way. The Network Ceiling Speaker such as Tonmind SIP-S01 is perfect to be installed in the interior of buildings.The IP Wall Speaker such Tonmind SIP-S11(T) can be installed horizontally or vertically, which makes it easy to be mounted on the exterior of building such as under eave. SIP Horn Speaker SIP-S21 (T) , SIP-S22 (T) shall be good to be installed in ourdoors. • Waterproof Level. If you need an outdoor IP Speaker, it need to be waterproof. Set Tonmind IP Speakers as example, SIP-21 (T) and SIP-S22 (T) are IP67 waterproof. • Rated Power. The rated power of IP Network Speakers differ in market. For famous Axis brand, it's 6W and 7W optional. While for Tonmind SIP Speaker, it's 15W and 30W optional. • Two-way or One Way. The built-in Mic in IP Speaker makes it two way communication. It depends on the application need. Tonmind IP Speakers do not have built-in MIC. • Price. It's important to choose a competitive IP Speaker. Tonmind delivers cost-effective, consistent and reliable IP Audio Products to customers. The price of 15W version IP Speakers will be a bit lower than 30W's. It depends on your need. For more information about Tonmind IP Speakers, please click here or email to sales@tonmind.com

The current software of Tonmind IP Speakers, IPTool, can manage speakers in a simple way. Tonmind IP Speakers can support Axis software, support RTP multicasting. Tonmind R&D team are now working on a upgraded management PA System software for windows. The new software is estimated to be released officially next month. Tonmind Technology has strong R&D base with over 10 years IP audio and video technology experience. We deliver similar Axis, 2N SIP Speakers with much more cost-effective price. We are looking for exclusive distributor for Tonmind IP speaker in designated region. For any enquiries, please contact via sales@tonmind.com

In order to celebrate 2021 China National Day, Tonmind Technology factory will be closed from Oct.1 to Oct.7 and office center to be off from Oct. to Oct.4, normally open from Oct.5. Our service will have limit access during this period. Business partners can leave a message to us and we will try our best to support. TONMIND, designer and manufacturer of Professional PA System since 2014, products including IP Speaker, SIP Paging Gateway, IP Board, aiming provide excellent SIP speaker system for customers.

Tonmind SIP speakers series including ceiling, wall mount, horn versions have won great popularity and reputation worldwide. Here are some preventive maintenance tips that can be taken by customers. • Avoid putting it to heat radiators, such as stoves and heating pipes, and do not place it in damp places. • Before connecting the SIP speaker to the amplifier, the power supply of the amplifier should be cut off to avoid damaging the speaker. • The speaker's impedance should be suitable for the recommended value of the amplifier. • Do not exceed the rated power. Otherwise, the sound quality will deteriorate and even damage the speakers. • The outer shell should be wiped with soft dry cloth and not coated with furniture wax or benzene or alcohols. • SIP speakers should be placed on a solid floor to avoid bass attenuation.

Tonmind has developed the SIP paging gateway SIP-T20 for business to extend existing PA solutions. The built-in MIC enables two way communication.  With 15W audio amplification output, it can be used in both small and large applications.  It has various interfaces including USB and SD card for easy configuration of intercom and paging solution. Main Features • Simple and slim black color design • Buit-in 15W power amplifier • Support extra USB 4G Mode and SD card • Buit-in MIC for two way communication • Compatible with standard SIP protocol • Based on open standards for easy integration • Quick installation with just one network cable (PoE) • 48K OPUS Audio Codec enables excellent sound quality. • 15KV high electrostatic protection ensures high reliability. Broadcast Application The SIP adapter can be used for different zones of broardcasting music or message connected with IP intercom for comminication. Alarm Column Application The paging gateway SIP-T20 can be connected to alram column system. In case an emergency, the user can press the key to trigger alarm notification. TONMIND, designer and manufacturer of professional pa system since 2014, products including ip speaker, sip paging adapter, ip board, aiming provide excellent SIP speaker system for customers. For any enquiry, please contact via sales@tonmind.com

Dear Business Customers, Thank you for your continuous support. Tonmind Technology will be closed from Sep.19, to Sep.21 in observance of The Mid-Autumn Festival (The traditional harvest festival celebrated by Chinese people). Please arrange your order plan in advance. We are sorry for the inconvenience caused. Best Regards, Tonmind Technology sales@tonmind.com