We provide voice • video real-time application customization for customers who want to start their own softphone product. With the wide knowledge of communication method, embedded, sound CODEC, video CODEC, we are able to provide various solutions upon customers' demand.
SIP Interphone
We provide development support for video interphone system and video conferencing system based on our self-developed SIP stack and video related library.
Development practices- Signaling: SIP
- Media transition: RTP
- Sound CODEC: G.711 u-law
- Video CODEC: H.263, H.264, Motion JPEG, MPEG4, etc
- Video capture: Video for Windows、DirectX
Web edition VoIP/Video application development
We can develop video conferencing system functioning via a browser plug-in based on ActiveX control(VoIP / Video Library). We are also capable of HTML / JavaScript development.
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Video Phone development
VoIP/Video application development on desired OS. High-quality applications can be deliverd in a short time with the help of our VoIP / Video Library. We are also capable of Application GUI development.

SIP interphone development
We provide various services, from consulting through product development, to help our customer with Interphone applications. We have essential support for LOCK/UNLOCK action specially designed for interphone, library optimized for IP interphone development and plenty practices with our modules (SDK).
Click here for detailed information.
VoIP / Sound quality
We provide necessary help regarding sound quality improvement and latency reduction, for sound applications running on Windows Mobile / Windows CE.
We also provide various support to embed sound CODECs including G.711, G.729a/b, GSM, as well as video CODECs including H.263, H.264, MPEG4.
High qulity sound processing can be realized based on our own technologies such as SIP Stack SDK. Moreover, software based echo canceller and noise suppressor will also be added, attuning to higher sound quality standard. We have got plenty cases with this and we are also able to embed third party modules if demanded.
- Sound CODEC: G.711, G729a/b, GSM, etc
- Video CODEC: H.263, H.264, MPEG4, etc
- Acoustic echo canceller (AEC)
- Echo suppressor
- Noise suppressor
Softphone
Forte
- Deployment on handy terminal, PDA, Jacket phone, smartphone, etc
- Embedment on Windows CE/ Windows Mobile / PocketPC clients
- Sound CODEC: MP3, WMA, PCM, G.711, GSM, etc
- Video CODEC: MPEG4, H.264, H.263, etc
- Protocol: SIP, RTP, HTTP, etc
We have especially abundant application developing practices on handy terminals from various makers, as well as plenty SIP/voice feature deployment cases on 3G/PHS modules and wireless cards.
3G/PHS module
We can deploy the softphone on 3GPP-ready sound modules (W-CDMA, GSM) as well as PHS communication modules.
3GVarious network softwares can be deployed for MMS(SMS) send/receive,answer machine and telephone forward services.
(Images of communication modules) Click here to learn more about our SMS based push application. |
PHSLocation information can be fetched and send to business applications automatically.
(PHS Data Card) Click here to learn more about our VoIP deployments on Handy terminals and PHS data cards. |
Multicasting
Multicasting and Push to talk features can be realized at lower cost with the help of IP-based multicast library. We are capable of design and development of multicast applications for in-store communication, emergency broadcasting and offsite communication. Demonstration and small-scale systems available for instant evaluation.











ISR is proud to be a certificated Google Enterprise Partner(GEP) for Apps.