scroll to top
Stuck on your essay?
Get ideas from this essay and see how your work stacks up
Word Count: 310
Voice over IP IP telephony describes a solution to transport voice traffic over IP We can use IP to transport voice video and data communications There are numerous benefits to this type of infrastructure including simplified administration cost savings on telecommunications fees and unified messaging services Voice traffic and data traffic require two completely different solutions Data traffic is relatively resilient and tolerant of slow WAN links lost packets and unsequenced packets Voice traffic on the other hand is not Voice requires packets to be received in the same order in which they were sent if a packet is lost it should remain lost as retransmitting the packet would only confuse the person on the receiving end of the call To support voice traffic several enhancements components must be added to the data network infrastructure These components include 1Specialized router interface 2Specialized LAN switch modules and interfaces 3IP telephone handsets 4Cisco CallManager servers Offers a scalable reliable and manageable solution for central point calling process It has set standard of performance for IP telephony call processing Cisco CallManger takes the place of PBX and works with PBX for any legacy telephony devices For fault tolerant the telephony network need clustering callmanger Clustering combines two or more CallManger servers into logical unit Clustering provides enough server so that if one fails the other servers within the cluster assume its load without compromising service 5Cisco Unity Mail allow users to listen to their e-mail over the telephone check voice messages from the Internet and when integrated with a supported third-party fax server forward faxes to any local fax machine 6Foreign Exchange Office Interface Connect the IP network to off-premises equipment such as a PSTN CO or to a PBX tie-line interface One of the main funcation of FEOI is to set parameters that are compatible with tie-line that exist in different country
@Kibin is a lifesaver for my essay right now!!
- Sandra Slivka, student @ UC Berkeley
Wow, this is the best essay help I've ever received!
- Camvu Pham, student @ U of M
If I'd known about @Kibin in college, I would have gotten much more sleep
- Jen Soust, alumni @ UCLA