Video Conferencing


Video Conference is a live video and audio communication system (including hardware and software) used between two or more people in separate locations to interact through various communication channels in real time such as: Internet, WAN, LAN. The video conference can be as simple as a conversation between two people in private offices (point-to-point) or involve several sites (multi-point) with more than one person in large rooms at different sites.

People use video conferencing when:

  • The parties of the conversation can't physically come to the same location;
  • The members of a working group need to setup a online meeting to exchange information
  • E-Learning
  • Providing medical treatment and consultations through video conferencing allows doctors to be everywhere and gives patients access to healthcare services that might not be available in their area
  • The jobs or major need to exchange audio, video information real time. For this cases video conferencing is the best choice when the distance from each party is really far, it is inconvenient to set up a meeting at the same location.

What are the benefits of video conferencing?

  • Save your time to setup and  shut down a meeting.
  • Save your expense.
  • Easy to set up a metting for multi-sites
  • Quickly set up a meeting
  • Allow you to record the content of the meeting
  • Secure your information
  • Stable content transmission
  • Bring you a really hight quality of audio and video for the meeting.
  • Help you to make a important dicision in time.



The core technology used in a videoconferencing system is digital compression of audio and video streams in real time. The hardware or software that performs compression is called a codec (coder/decoder). Video conferencing is IP based solution, support multi-protocols (H.320, H.323, SIP, SCCP) allows deploy advanced video conferencing on the exist network infrustructure.


Small Meeting Room

Small Meeting Room: is equipped with 1 personal computer with the video conference software setup. This  Meeting room may be added some more external device such as: Camera, Micro, webcam… allow people attend to the point-to-point meeting or multi-points meeting arranged from the common meeting room. The components for this room as bellows:

  • Software for PC (Option: webcam, micro, LCD). This software support to point-to-point, allows the people to attend a meeting up to 3 parties
  • Or: video conference devices is build-in software, micro, camera

Large room

For each site, the components below is required for jointing to the meeting (this is also the requirement for each site need to joint to the site-to-site meeting):

  • Camera: Video input
  • Micro: Audio input
  • Codec: encoding or decoding the digital data stream (video, audio, data)
  • Monitor: Display the content of the  meeting includes: far site, near site, and the presentation data
  • Speaker- Broadcasts the audio of far site and near site
  • Sharing the presentation data- Using PC more for sharing data in the meeting

Note: The number of the device for the room above can be adjusted according the area and the number of people attending the meeting of each room

Extention component

To meet the demand of customer about the extention the quantity of site and the requirement of: recording video, audio of the meeting, the components bellows needs to add more: 

  • Storage and recoding component – stores the content of the meeting
  • MCU- multipoint control unit and some other Meeting management components: The multipoint control unit is an endpoint on the LAN that provides the capability for three or more terminals and gateways to participate in a multipoint conference: allows to setup, establish, end the meeting; chose the display layout, setup the schedule, manage the quality of the meeting….

Site-to-Site connection

Multi-Site Connection

Connection bandwidth requirement:

  • Connection bandwidth requirement for all of the link: upload  bandwidth is equal to download bandwidth
  • With the rooms are at the same location as the MCU, using the lan connection with the bandwidth at leat: 1.25 Mbps
  • With the other sites using the connection to the MCU site requires the bandwidth at least: 1.25 Mbps for HD quality transmision
  • Bandwidth at MCU site: Quantity of site x 1.25 Mbps (the bandwith requires at each site)
  • The bandwidth above is the dedicated bandwidth for video conferencing at each site, and MCU also.
  • During video conferencing transmission on the link, it is necessary to open some application port on the link, so that the customer should us the connection link such as: Leas line or Wan connection to ensure the quality of the meeting.


Polycom (

The industry leader in Video Conferencing solutions. Polycom offer HighEnd Video conference solution: Polycom Group series; EndPoint HDX series; MCU dòng RMX series for customer like Goverment; Holding;Enterpries…..; the solution include: Hardware, Management software: VCM (Video content management); Storage software: RealPresence Capture series; RealPresence Media Manager; software for Laptop, mobile device operating strongly. Polycom bring to customer a stably connection, easy connection, and the convenience in the meeting.

LifeSize (

One of the leader branch form USA; offer a variety of device and connection solution. Beside the endpoint: Lifesize Icon 600; Lifesize Passport series; Lifesize Room 220 ( the feature of MCU embedded support up to 8 HD conntion sites ); Lifesize Team 220 (support MCU embedded - 4 HD connecton sites); Lifesize express 200, and  MCU: from UVC series small ( several sites) to large (>100 sites); with many options for customer, Lifesize also provide some kinds of small, compact; build-in Endpoint: LifeSize Unity 50; Endpoint software: LifeSize Softphone, to meet  the demand of customer from small enterprise to large Enterprise.

Sony (

Sony, a leader in the AV industry, introduces a new form of high-defi nition (HD), Sony have developed video conference technology to new, creative, and excellent level about performance, and  designation of the device. The Video conference solution is optimized solution and highly comparative cost. Sony offer large range of produce: from MCU embedded: PCS-XG80; PCS-XA-80 support 10 sites  to large MCU: PCS-VCS suppots up to 100 sites. The also offer large Endpoit: PCS-XG55; PCS-XA55… and Endpoint embed PCS-XL-55 for small room.

Radvision (

Radvision  is an provider of video conferencing solution over the world, now it belongs to AVAYA - The brand offer end to end connection communication solution. Bring the  comprehensive communication solution by the interaction betweent  video conference and unified communication.  For Hardware: Beside endpoint: Scopia XT series and small, compact series such as Endpoint: Scopia XT Excutive 240; Radvision also offer many options  meet the demands of customer with : Scopia Elite5000 series (supports 30 full HD sites); Scopia Elite 6000 Series MCU (supports 20 điểm fullHD) suitable for enterprise, company.  For Software : Radivision offer video conference software for mobile meeting: that set up on PC, smart phone, and the management software such as: Scopia Management; Radvision eVident Monitoring



CCTV (closed-circuit television) is a TV system in which signals are not publicly distributed but are monitored, primarily for surveillance and security purposes.

Closed-Circuit Television includes: recording, transmission, storage, allows to playback local or remotely. Beside that, the system also had controller using for PTZ camera.

CCTV Benefits

There are many benefits of using a CCTV security system. Some are obvious, others less so. In our experience our clients report a number of immediate and tangible benefits after having a CCTV system installed.:

  • The closed-circuit television (CCTV) camera provided traffic operators the availability of visual information so they can examine real time incident conditions and provide a higher and more responsive quality of service to the traveling public.
  • Most people have often confessed that the presence of CCTV cameras makes them feel safer. Feeling safe gives peace of mind to Business owners, employees and homeowner that not only are their businesses or property safe, but also are their loved ones.
  • Remote monitoring – keep an eye on your home or business when you aren’t there. All our CCTV systems can be viewed and controlled remotely over the internet (via an iPhone, laptop etc). In addition to this, AIS can provide an independent 24/7 monitoring service.
  • At prison: CCTV system beside help to improve the efficience in management  of  monitoring the action  of culprit, it also provide a recording data, that is used as evidence when neccessary
  • At Building: CCTV is istalled at corridor, parking lot that improve the security quality
  • The CCTV reduced theft from supermarket shelves but also provided fascinating evidence about customer behaviour. By studying hours of video tapes of customers moving around the shops, supermarkets were able to gain insights into customer behaviour
  • Many schools, kindergarten now had installed CCTV, that help parent can  access and  monitor the quality of teaching and care service of teachers.
  • Reduced fear of crime – knowing you are well protected gives a feeling of security that should not be underestimated (ask anyone who has been burgled how they felt immediately after it occurred).
  • Home CCTV systems are increasingly becoming more popular as a more cost-effective way of protecting homes, outdoor areas, such as driveways and gardens from intrusion and other crimes.

Processing Technology

Analog technology:

Analog video technology is the “classic” method of video surveillance – also known as CCTV (closed-circuit television). The analog picture data is transmitted via BNC cable from the camera to a recording system, where it is saved for display; intergrated feature: stream data on Ethernet connection, the system support to remotely monitor on smart phone, PC.

  • Pros of analog CCTV
    • Lower establish cost - In most cases, analog cameras cost less up front than IP network cameras.
    • Wide-spread compatibility - Mixing and matching camera models and surveillance equipment form different manufacturers is easy with an analog CCTV security camera..
    • This solution is convenient used for Monitoring solution need a monitor center .
    • Easy to install, configure, and operate
  • Cons of analog CCTV
    • The limitation  of  Picture resolution
    • It is complicated in the installation when the large quantity of camera at far distance from the center, and the channels on DVR is limited.
    • Storage: is not really suitable when the quantity of cameras in the system is so large
    • The power cable is always separated from data cable.


Components of a CCTV Video Surveillance System

  1. DVR: Most modern CCTV video surveillance systems incorporate DVRs (digital video recorders) which enable operators to reap some of the benefits of a network-based surveillance setup. DVRs convert the analog footage to digital, which helps to extend storage capacity, makes it much easier to search archived footage, and also allows users to stream video over a network for remote viewing from multiple locations.
  2. Camera: Security cameras are the starting point for most CCTV video surveillance systems. There are endless possibilities when choosing CCTV cameras and lenses – everything from fixed models designed for monitoring very specific locations, to day/night cameras, and powerful PTZ domes for patrolling large area
  3. Monitor: Tivi/Monitor/Projector
  4. PTZ controller (Option): Used to controller PTZ camera
  5. Infrustructure for remotely montiroing: Switch; router; firewall; modem  support to connect to PC on Ethernet infrustructure

IP Technology

  • Pros of IP CCTV system:
    • Easy to install independly with Network Video Recording  (NVR) device; support PoE feature.
    • High resolution
    • With PTZ camera uses less cable than analog PTZ camera
    • Support better for recording, storage feature with server.
  • Cons of IP CCTV system:
    • Higher cost
    • Need more knowledge on IT to setup the system
    • High bandwidth. You need a fast LAN if you are installing many due to their streaming.

Components of IP CCTV system

  1. IP camera: Using TCP/IP protocol
  2. NVR: Recoring + decording ; connects to Monitor system
  3. Server storage: Extent the storage demand for the data recording from cameras
  4. Monitor:  (Tivi/Monitor/Projector): Connect to  NVR; displays the signal from camera
  5. Infrustruce: Switch; Router; Firewall; Modem used for connection from  PC, NVR, Server to IP Camera


Bosch (

The famous Brand form Germany; the provider of high end IP and  analog camera . Bosch offer analog camera  with: Indoor/ Out Door dome:  VDX series; day/night camera; LTC series; box camera: VBC series; camera PTZ:Auto Dome 600 and 800 series; DVR: DIVAR AN 3000; DVR AN5000 series and IP camera : SD; HD resolution comply with the standard  ONVIF  and high end NVR, they also offer many produces comply with industrial standard

Axis (

Axis is the famous Brand of Swedenm  the global market leader in network video. Axis offer IP camera: Dome camera, PTZ camera, box camera, and M series; P Series; Q series camera. The IP camera solution  intergrated with alarm system, audio dectector system…. Provide to customer the NVR: M70; P72; Q74; Axis 291; Q7920…. And monitoring software for IP camera.

Sony (

Sony, a leader in the AV industry, introduces a new form of high-defi nition (HD), sony develop CCTV system with many series of  analog camera, IP camera  with comparative cost. To meet the growing demand of customer; Sony offer the camera solution with: IP camera Indoor/Outdoor; Dome Fixed/PTZ; camera box:, such as Sony G6 IP: V series , E series;Sony Camera  G5 Ip: V series; Z series; E series and X series; NVR with series: SNT. Beside that, Sony offer Hybrid solution support to connect to analog camera from  IP CCTV system.