Asterisk Vs Cisco / Avaya Voip Telephone Systems
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Asterisk Vs Cisco / Avaya Voip Telephone Systems
VoIP or Voice Over IP, the most recent in wireless communication works by taking the mobile call, changing from analog to digital signals and transmitting these signals over an IP network or broadband and lastly terminating it on a PSTN. Call charges are cut down tremendously using this technology. The advantage is the fact that software emulating a telephone can be loaded on your laptop thereby enabling you to access its services even when you travel.
VoIP uses SIP (Session Initiation Protocol), a peer-to-peer technology that enables computers to speak with each other with no calls routed through some central station. Therefore, calling from SIP enabled phone to a different cuts call charges drastically.
The Asterisk System comes with a Asterisk server which manages such things as teleconferencing, voice mails, queues and hold music. The hard phone can be a digital phone that has an Ethernet jack to speak with the server using the SIP protocol. They, including the wireless version, are certainly not very expensive. The soft phone are implemented in software and could be attached to a PC. Asterisk runs predominantly on Linux, a wide open source os.
Cisco has telephony solutions which are network based and run over a router. They are scalable and work effectively in multi-user environments in mulitple locations. The UC500 suite can be a bundle of services like router, switches, security, telephony and wireless functionality within a device. This greatly reduces costs for a corporation which is intending on these services. The Cisco CallManager Express uses SIP for connecting phones with the Internet and also has the options of UC 500 making it more viable for medium scale businesses. Additonal features are paging, intercom, ICMP and class of restrictions over a users calls.
Avaya IP Office uses IP technology to provide voice and data communication, messaging and customer management over multiple locations with 2 to 300 people. It lets you work from anywhere, host conferences, integrate applications, measure and improve client satisfaction at the touch of your mouse. It is affordable as it lowers long-distance calls, conferencing fees, supports remote workers so helping keep your business collaborated and up-to-date.
The three products could be compared based on the following few criteria:
* Number of extensions: Asterix can support upto 100 extensions while Cisco and Avaya can go upto 360 extensions thereby suporting large organizations too. This increases the scalability helping to reduce costs in the end.
* Freeware: Asterisk is freeware and runs on the Linux server. This makes the telephony solution less than either Cisco or Avaya which will make extensive usage of routers and switches for communication.
* Installation and maintenance: Asterisk can be a programmers dream mainly because it is open source and may be changed at his will. However, to have an end-user, it could be a nightmare. Support and services are better with Cisco and Avaya that are established names in the industry.
The main thing looking for Asterisk is your buck. However, it is not always far better to look on the initial cost of things. Other criteria like scalability, integrating of one device online websites already existing, interoperatability and long haul costing should be thought about while choosing one product over another.
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