Specialized in SDWAN, VPN, Secure CPaaS, carrier-grade WebRTC-SIP platforms for Unified communication-collaboration, signaling gateways, SBC, soft turrets and telecom integrations.
Interests : Protocol Design and ultra-low-latency real-time media streaming.
Ardent contributor to Open Source software, avid freelancer, innovator and technical writer (telecom.altanai.com ).
Inventor of RamuDroid, an IOT Road-Cleaning robot medium.com/ramudroid
Author of WebRTC Integrator’s Guide ,
www.packtpub.com/in/web-development/webrtc-integrators-guide
US Patent on “Multimedia Conferencing“ – US20180284957A1
CV : https://altanai.github.io/
Have built secure, fast , enterprise grade SDKs, platforms and applications over telephony, wireless communication and media streaming. I work with audio/video core libraries and drivers to perform video analytics and Machine Learning both on server ( freeswitch ffmpeg, gstreamer , janus , RTP engine , Wowza etc ) and edge ( native android, PJsip, browser etc ).
Part of innovation and R&D telecom labs, also worked with the Converged network systems Lab in Tata consultancy services on many next-gen SIP applications for world’s top telecom providers which includes British Telecom, ATnT, Bouygues telecom, Belgacom among others . I have long working experience on WebRTC APIs and have made 2 full fledged VOIP communication platforms ( one using SIP as signalling , another using socket signalling ). I have hands-on experience in developing Enterprise logic for the telecom application server in SIP and JAINSLEE using Core and Enterprise Java.
I have a strong command of design patterns and practical experience in process-oriented customer-centric agile environments .
- Low level Designs and development of Voice / VoIP Architecture (Call Control/Signaling, Media, Transport, Applications )
- Technologies – WebRTC , IMS , VoLTE , SIP Header Manipulation
- Servers – asterisk , kamailio , mobicents , SBC , IPTV , VAS , UC&C, gateway
- Protocols – SIP, RTP, RTCP, SDP, ICE, STUN and TURN
- Programming and Algorithms Extensive experience in Multi-threaded programming and network programming in Linux: UDP/TCP, Sockets, IPC.
- Integration of Third party Services and Session Border controllers (SBC)
- Avaya CM/ IP-PBX, Apropos CCS/IVR, Cisco Gateway/MediaSense
- Cisco CUCM, JTAPI/CTI, NICE Logger, SIP/PSTN Trunking
- Microsoft LYNC, Polycom Video Bridge, Cisco 5500 Wireless/AP
- Genband spider SBC and fcs web sdk integration
- Jitter management, Packet aggregation, MOS score optimization
- Security: TLS/SSL, LDAP
IMS domain knowledge (SIP, RTP, RTCP and related 3GPP IMS protocols ) . Video Telephony on LTE and WiFi radio technologies.
- Media Servers and live streaming –
- Servers – Janus , Wowza , freeswitch , crtmpserver , gst , ffmpeg , live555 .
- transcoding and multiplexing with MCU and SFU based setup
- audio codec G711, G722, G729, AMR-WB, AMR
- video codec like H264, VP8, MPEG4, H263
- Jitter management, Packet aggregation, MOS score optimization
- IVR, Speech Recognition, Natural Language Speech , Routing applications,
- profiling , voice mail , recording
- Video /Audio Analytics and Machine learning
- IOT and M2m wireless communication
- MQTT, BLE , Rpi , Arduino , shell scripts
- Server Side – Java , JavaEE , nodejs , grunt , php , mysql , JavaScript Libraries and MVC frameworks , MEAN, nodejs
I like to contribute to Opensource projects and regularly participate in forums.I have written a book on Integration of WebRTC to Telecom :
I am organized, enthusiastic and possess outstanding communication skills. Also I have the ability to work under pressure, meet tight deadlines and maintain a friendly environment at all times.
Education and Certifications :
| University | Degree(s) Earned | From (mm/yyyy) | To (mm/yyyy) |
| Seattle University | Masters in computer Science | 01/2021 | 12/2022 |
| Anna University | Bachelors in Information Technology | 06/2007 | 06/2011 |
Scholarship
- Seattle University Graduate Scholarship contingent on academic progress requirements
- Won Scholarship from Army Welfare Society, India for consecutive academic years 2007-08, 2008-09
Work Experience
Ciso Meraki
- Network Engineering Paltform
- IPSec VPN
- SDWAN
- SASE
Netflix Streaming Open Connect Transport protocol R&D intern (2022)
- Did research and development on the algorithm for Netflix’s new upcoming highly-interactive RTP/RTCP based streaming media applications. Analyzed and leveraged heuristics for rate adaptation, bandwidth and latency estimation, congestion control and loss recovery of RTP/UDP media streams.
WebRTC.ventures intern (2022)
- I implemented WebRTC Telephony applications using SFU, MCU and hybrid setups. Janus, Freeswitch. I implemented the optimization of metrics for TURN and ICE.
Airtel IQ Core Lead engineer for cloud telephony (2020)
- I designed and implemented the critical piece of VoIP backend system on Asterisk libraries. I led and delivered the Cloud telephony for Airtel via SIP trunking.
Plivo Zentrunk SIP trunking and cloud Telephony (2018-20)
- Core voice Engineer at Plivo Communication Limited
- I designed the SIP trunk service architecture for Plivo Zentrunk. I was single owner for crucial optimizations of programming and product shaping of core SIP backend platform. I owned Inbound call flows, Security, Call-Insights, Hangup Code, CDR, MOS analytics, Media route optimization, handover leveraging PoP as part of leading this project.
Jiyo Streaming and Broadcasting Solution (2014-16)
- Programmed modules for Wowza engine, CloudFront distribution, adaptive streams for HLS, RTSP, RTMP, transcoder pipelines. Researched and innovated Media engine for WebRTC to legacy codecs. Patented service for multimedia conference systems. Build broadcasting service jiyoNow and UCC(Unified Communication Collaboration) TangoFX.
Senior Developer Contract at IPC Systems, Inc.
Senior Developer Contract at IPC Systems, Inc.- Principle developer for IPC Cloud communication solution Unigy360 . IPC Unigy 360 Soft turret for financial communications (2016-18) On-contract via Tech Mahindra. Tools used webrtc fcs lib from genband , spidr gateway , Freeswitch SBC , Oracle Communication application server , Radisys media manger .
- Developed software-based VoIP turret phone system. I designed and implemented the full stack distributed CPaaS from inception to delivery. Implemented the integration to Genband Spidr gateway and Radisys Media Server.
- One of the first core developers at IPC’s cloud trading communication platform, integrated to Oracle SIP application server backend with Genband gateway, Radisys Media Server, and Apache tools.
- Senior Software Engineer at Tech Mahindra R&D Cloud systemsTurret softclient on Webrtc for client IPC System ,Inc , using genband spider signalling gateway and radisys media engine
Senior Software Engineer at Above Labs
- Building WebRTC API , signalling and media infrastructure for VOIP , Mp4 parser , media engine , media codecs and bridging , developing algorithms for efficient VOIP mechanisms
- Core developer for Jiyo (https://www.jiyo.com) for b2b unified communication , media streaming and API platform development .
Telecom practices Lab (2011-14)
- Conceptualization and implementation of “Telecom Service Orchestration and Transformation Engine” for Elisa(Belgium) among a few others. Designed call flow and architecture for interaction of IMS SIP Servlets with existing telecom applications via IN-SIP, SIP-SIP and SIP-Web RhinoTAS and Mobicents.
- I worked with – J2EE ( struts , spring , hibernate , REST WebServices ), Web ( Jboss tools , jquerry , json , AJAX, JSP , Servlets ), SIP , IMS , WebRTC
Internships and Industrial Training in Ungergrads 2007-11
ISRO ( Indian Space Research Organization ) ,
Satish Dhawan Space Centre or Sriharikota Range
Internship for Satellite Communications and Digital Image Processing – 2008
Lister Technologies , SalesForce CRM integration , InternshipAll India Radio Industrial Training
BSNL 10 days workshop on optic fibre
GSOC ( Google Summer Of Code ) -2011
IBM TGMC ( The Great Mind Challenge) – 2010 , 11
I have experience in the design and creation of a variety of telecommunication applications, such as IPTV Parental control, Secure RTP, FMFM (Find Me Follow Me) , Enhanced call options and a complete understanding of the architecture design. I have experience of developing webRTC client products with SIP, in a team of four in a short span of 6 months.
Independent Self Funded Projects
Following are some of my open sourced projects
RamuDroid:
I am the inventor of RamuDroid, which is a robot that cleans outdoor garbage. I open sourced the model, design and development of this specific use case Robot in effort to help the cause of cleaning trash from our streets. This robot was featured on many platforms and conferences.
This IOT droid to clean roads and outdoors inspired by bharat swachata abhiyan. Abilities of the droid include picking up litter from roads, media streaming in real time, image processing and autonomous decision making through sensory information. Hardware includes Arduino, Rpi B, adafruit BLE, Ultrasonic sensors, GPS, camera module. First iteration of this robot was published in 2016 and engineering and computer vision advancements were made in following versions. Links
https://medium.com/ramudroid
https://hackaday.io/projects/hacker/134759
v8 https://youtu.be/UDFjFlcZjJg?si=tCaFgB10xJPAHM-Y
v7.5 https://youtu.be/O7b6NlOpLso?si=gh-6tCnBBPk89Fte
v6.5 https://youtu.be/wHQMVP_WOLs?si=bfVABaNEVuWBItsi
v5 https://youtu.be/KzfTfvDlvSM?si=_5RmUVZHP8kUo6vg
v1 https://youtu.be/iZzjLxmx0D8?si=oqxI8W03sEnmixrk
Webrtcdevelopment:
Webrtc libraries for common usecase like e learning , p2p call , conference , desktop share , record and playback. Use Cases multiplayer games, collaborative draw , coding , AR and media controls are also available.
About.me : http://about.me/altanai
Academia.edu : https://annauniv.academia.edu/AltanaiBisht
Slideshare : http://www.slideshare.net/altanai
LinkedIn : http://in.linkedin.com/pub/altanai-bisht/11/677/89
Stackoverflow : http://stackexchange.com/users/1481405/altanai?tab=accounts
Github : https://github.com/altanai
Application programming interface Application server Arduino CSP FFMpeg freeswitch H264 ICE IMS IN Instant messaging IOT IP Multimedia Subsystem Jainslee JavaScript Kamailio Media server NAT OTT ramudroid raspberrypi RTCP RTMP RTP RTPengine SBC sdp Security service broker Service harmonization Session Border Controller Session Initiation Protocol Sip sip server SRTP STUN Telecom Telecommunications TFX TURN unified communication VOIP WebRTC Wowza XMPP
Telecom R & D 