Step 1: Why IP Telephony?
Many businesses embark on an IP telephony path to lower costs, but the benefits associated with simplifying your network and becoming more efficient operationally are equally compelling.
IP networks can be significantly less expensive to operate and maintain. Its simplified infrastructure cuts costs by connecting IP phones over the LAN wiring system, thus eliminating dual cabling. Using the extra WAN bandwidth for IP telephony also leverages the untapped capabilities of your existing data infrastructure, maximizing the return on your current network investment.
Let's look at some of the tangible benefits of an IP telephony network.
Simplify Moves, Additions and Changes (MACs)
Telephone set moves, adds and changes become a matter of "plug and play" with IP telephony. There's no need to dispatch a technician or reprogram the system. The traditional voice database is effectively eliminated as the phone set now registers with the data network's DHCP database. Since each IP phone has a unique MAC address, the DHCP server recognizes the new IP address and re-associates the existing configuration profile with each MAC.
Create Bandwidth Efficiency
When telephone conversations are converted into IP packets, bandwidth efficiency is created because packets are only transmitted when they contain actual speech samples (referred to as silence suppression). Compression creates even greater efficiency. In many cases, companies can reduce the number of T1/E1s in their network, or significantly reduce the bandwidth required to transmit voice. IP telephony also can eliminate expensive toll charges on site-to-site calls by routing voice traffic over the WAN.
Converge Network Support
IP telephony networks lower support costs by improving technician efficiency. A converged network gives you fewer networks to manage, reduces training and certification time, centralizes management, and reduces travel.