Voip Cisco Introduction to Ip Telephony
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Additional info for Voip Cisco Introduction to Ip Telephony
This practice involves maintaining only a few versions of software on the network that have proven track records and that have been tested or piloted within the network to prove reliability. 1 Chapter 3 Planning the IP Telephony Network IP Telephony Availability Requirements Another best practice is software testing. Software testing includes feature testing and “what-if” testing to determine the software impact to the existing environment. Cisco offers a testing service called Network Verification Services (NVS) that can help organizations better test their software, hardware, and network designs.
Site 3 etc. Pattern 1 Pattern 2 Pattern 3 etc. You should also list all special call routing and call distribution requirements here, such as: • E-911 calling • 900 call blocking • ACD (Automatic Call Distribution) Inbound Dial Plan For each site, list the incoming called numbers for PSTN users to reach IP phone users. Table 3-6 Site Name Inbound Dial Plan DID or Two-stage Dialing (specify IVR, auto-attendant) Inbound PSTN Gateway (which PSTN gateway routes incoming calls) DID Number Range or IVR/AA Main Incoming Called Number Site 1 Site 2 Site 3 Site 4 etc.
In each of these areas, a descriptive checklist of important critical success factors is provided, along with required planning collateral and references. The six major steps for WAN deployment are: Step 1 Collecting Information on the Current WAN Environment Step 2 Determining Voice Bandwidth Requirements Step 3 Analyzing Upgrade Requirements Step 4 Performing Upgrades and Implementing Tuning Step 5 Assessing Results Step 6 Operational Turnover and Production Collecting Information on the Current WAN Environment The first step in planning WAN deployments is to collect information from the WAN and WAN devices.