VoIP Deployment

Understanding the VoIP Landscape

VoIP is a hybrid of data structure and voice application, so all the flexibility of data programming can now be applied to telephony applications. Previously, phone systems were filled with proprietary hardware and software. If you wanted to add five more phone lines, you had to hope that your system had the room for an […]

Dispelling VoIP Misperceptions

Some of the confusion surrounding VoIP isn’t unique. Fifteen years ago, people had the same fears, concerns, and misperceptions about the hottest technology of the time — ISDN. Today, the marketing machine for VoIP has promised that it will do everything but julienne potatoes, all for free or a low monthly package fee. VoIP isn’t […]

Identifying the Hardware You Need (VoIP Deployment)

You can deploy VoIP as superficially or as deeply into your network as you want. You don’t have to replace all your existing phones, your phone system, and the copper wire that connects them together with new VoIP equipment. If you’re keeping all your analog phones and infrastructure, at a very minimum, you need a […]

Transmitting the Non-Voice (VoIP Deployment)

VoIP was designed for the transmission of voice conversations over an IP network. It evolved to sample and reproduce the human voice, matching the quality of existing telephony. It has succeeded in that endeavor, but two other essential aspects of telecommunications frequently use non-voice transmissions — touch tones and faxes. Pushing touch tones Technically, the […]

Porting Phone Numbers (VoIP Deployment)

VoIP has been helped along in popularity and growth by the widespread availability of high-speed Internet connections and the fact that people can migrate their phone numbers from their current local phone providers. Local Number Portability (LNP) is the process by which a phone number is moved from one local phone carrier to another. It’s […]

Ordering New Phone Numbers (VoIP Deployment)

You can often order new phone numbers more easily and at a lower cost than you can migrate existing phone numbers. Your carrier doesn’t have to negotiate the release of the phone numbers with another carrier, and it may even have numbers in stock to dole out to you. Remember these two things about new […]

Signaling with SIP (VoIP Deployment)

In This Topic ^ Deciding on your signaling choice ^ Looking into the SIP methods ^ Understanding the responses to methods VoIP isn’t a protocol, it’s more of a concept. A community of programmers wanted to send voice calls over the Internet, and they made it happen. With VoIP, one piece of software doesn’t do […]

Reviewing Signaling Choices (VoIP Deployment)

Computers are frequently identified by their operating systems. An Apple Macintosh or a Dell PC tells you the overall structure of the software that’s used on the computer. VoIP has a similar equivalent in the VoIP software that’s dedicated to call signaling that identifies the VoIP hardware engaged in both call signaling for the voice […]

Introducing SIP Methods (VoIP Deployment)

VoIP uses only a few SIP methods today, but more methods are being released while the technology and market evolve. SIP is also a key element in transmitting other forms of non-verbal communication, such as Instant Messaging. This topic covers only the SIP methods for VoIP transmissions, not the other SIP offerings. Sending an INVITE […]

Responding to Methods (VoIP Deployment)

The SIP methods are often tied to, or limited by, the SIP response received. All SIP responses are presented in three-digit numeric codes and referred to in denominations of 100 that identify the permutations of success, failure, or disposition of action requested in the preceding SIP method. SIP numbered responses range from 100 to 699, […]

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