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Posted in Shopping Product Reviews

How to explain SIP to a non-technical person

SIP… or Session Internet Protocol… is not necessarily a new concept in communications. It’s been around for a while, though it seems to be reaping a resurgence in phone apps these days. But… how do you explain what SIP is when they ask you?

Good luck with this one, trying to explain SIP to techies is hard enough.

Here are some very simple short statements that may help…

– SIP enables telephony through the internet network

– SIP allows us to packetize and prioritize voice traffic over digital circuits.

– SIP is a way that voice is packaged into a digital signal that is then enabled for transfer over the Internet.

– SIP digs a channel in an IP network so that voice/video can flow between two (or more) places. When you finish talking, SIP closes the channel.

– It’s an Internet protocol like HTTP for web browsing, only it’s used to make a phone-like connection between computers, PDAs, VoIP phones, or other devices that can talk over the Internet.

– SIP is a protocol that allows different media to communicate. All you really need to know is that SIP is the new PRI and is more cost effective from a trunking perspective.

– SIP has nothing to do with the Internet…regardless of where, when, or how voice traffic is transmitted. If sent as 0 and 1… SIP is what differentiates voice from all other data.

– SIP allows you to eliminate the cost of maintaining two networks (POTS + Ethernet) by putting your phone traffic on your Ethernet network.

– SIP is an integrated enterprise-class voice and data service with connectivity provided to your IP-PBX (a telephone switch that supports voice over IP)

Or… you can explain to a non-technical person by describing the SIP VoIP operation like this:

1. Callers and call recipients are identified by SIP addresses.

2. When making a SIP call, the caller first locates the appropriate server and then sends a SIP request. (The most common SIP operation is the invite.)

3. SIP or VoIP is a technology that allows you to make calls between devices, either through the local network or over the Internet (Managed or unmanaged). SIP is a standards-based technology that behaves much like your old phone line, but only uses the Internet as a medium.

4. Instead of going directly to the intended recipient, a SIP request can be redirected or trigger a chain of new SIP requests by proxy servers.

5. Users can register their location(s) with SIP servers.

6. SIP messages can be transmitted over TCP or UDP

7. SIP messages are text-based and use the ISO 10646 character set in UTF-8 encoding.

8. Lines must end with CRLF.

9. Much of the message syntax and header field are similar to HTTP.

10. The messages can be request messages or response messages.

You are now armed with some basic background in layman’s terms (or as plain as possible)… to explain what SIP is and does. If you need additional help of a more technical nature in deciding which SIP solution would work best for your particular business application… take advantage of the resources available at Broadband Nation.

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