UBM - United Business Machines Pakistan - Analog, Hybrid, Digital PBX


	1 Dilgusha Building, II Chundrigar Road Karachi 74200, Pakistan +92 (021)263-5021 (4 lines) Info@ubm.com.pk

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ANALOG PBX
Analog PBXs use analog technology which has been in use in telephone systems since the beginning. Hence it is a tried and tested technology. Most systems and telephones presently in use all over the world are Analogue. However Analogue systems are losing ground as newer and more sophisticated devices based on digital technology are making inroads in telecommunications field. Moreover the customer’s requirements for better and faster communication are forcing the manufactures to develop digital systems. Also, analog signals have size limitations as to how much data they can carry. Therefore they have limited features as compared to the feature-rich digital telephone.

PBX Variety and
Experience of UBM

DIGITAL PBX
Digital technology breaks your voice signal into binary code—a series of 1s and 0s—transfers it to the other end where another device (phone, modem, etc.) takes all the numbers and reassembles them into the original voice. This prevents voice from picking noise along the way. Hence the there is marked improvement in clarity of voice. Further the digital system permits greater flow of data between telephone sets. Thus we see a wide variety of telephones with bigger displays and multiple keys.

The development of latest Voice over Internet Phone (VoIP) is an example of digital technology helping companies to reduce cost and allow greater ease..

The most effective use of the digital versus analog technology is in the booming cellular market. With new phone activations increasing exponentially, the limits of analog are quickly being realized. Digital cellular lets significantly more people use their phones within a single coverage area. More data can be sent and received simultaneously by each phone user. Plus, transmissions are more resistant to static and signal fading. And with the all-in-one phones out now—phone, pager, voice mail, internet access—digital phones offer more features than their analog predecessors.

HYBRID PBX
The latest and most widely used systems, Hybrid PBXs can use single line telephones (SLT) in addition to an electronic proprietary telephone or Electronic Key Telephones. It is this feature that makes them popular because users have a choice whether to go for the expensive but feature-rich telephone sets or inexpensive standard telephones. A digital hybrid PBX will have all the advanced features found on a digital system while an analog version will miss out many of the digital functions. The latest models even have an option of adding a complete Multi-Cell Wireless phone system, while the Hybrid IP-PBX makes it possible to connect multiple branches and off-site staff (remote workers, home workers) to a single Hybrid IP-PBX in your main office with the ease of IP.

VOICEMAIL SYSTEMS
Voicemail is a centralized system of managing telephone messages for a large group of people. It is similar in function to an answering machine, uses a standard telephone handset for the user interface, and uses a centralized, computerized system rather than equipment at the individual telephone. Voice mail systems are much more sophisticated than answering machines in that they can:

1) answer many phones at the same time
2) store incoming voice messages in personalized mailboxes associated with the user's phone number
3) enable users to forward received messages to another voice mailbox
4) send messages to one or more other user voice mailboxes
5) add a voice introduction to a forwarded message
6) store voice messages for future delivery
7) make calls to a telephone or paging service to notify the user a message has arrived in his/her mailbox
8) transfer callers to another phone number for personal assistance
9) play different message greetings to different callers.

Voicemail messages are stored on hard disk drives. To retrieve messages, a user calls the system from any phone, logs on using Touch-tones (clearing security), and his/her messages can be retrieved immediately. Many users can retrieve or store messages at the same time on the same voice mail system.

Many voicemail systems also offer an automated attendant facility. Automated attendants enable callers to a "main" business number to access directory service or self-route the call to various places such as a specific department, an extension number, or to an informational recording in a voice mailbox, etc.