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What is SIP Technology?

SIP, short for Session Initiation Protocol, is currently one of the most sought after technology trends and innovatively improves communications within businesses. SIP is an open signaling protocol used in creating, managing and terminating sessions over an IP based network. Communication sessions established by SIP can involve voice, video and instant messaging, and can take place on nearly any communication device, including laptops, computers, tablets, cell phones, IP phones, etc.

Additionally, SIP supports traditional telephony features such as call forwarding, time-of-day routing, and personal mobility. SIP builds upon a large number of existing communications protocols, and are easy to customize, program, and build up for the best result. It is becoming a standard in service integration and simplifies communications by providing a single unifying protocol for all communications.

SIP allows for better integration with technologies like HTTP, IM, LDAP, H.323, Call Processing and much more.

  1. HTTP: Web-browser client and admin applications that allow you to manage and change features on your phones. Since the process is done through a web-browser, client apps no longer need to be updated after upgrades.
  2. IM: As instant messaging becomes more prevalent for interoffice business communication, SIP has found a way to integrate IM into the entire communication solution. No matter whether you are on the phone, instant messaging, or email, SIP allows you to have a unified presence.
  3. LDAP: LDAP permits Windows Server environments with domains to create users on the domain server and these profiles can get pushed out to endpoints. This allows for single sign on (SSO) to a number of applications centralizing user and password management.
  4. H.323: H.323 is a more propriety protocol when sending voice over IP; whereas, SIP is a more open standard allowing ease of integration to other platforms and solutions. SIP has a limited feature set of approximately 16 features; thus, clients in need of more features typically turn to adding Feature Servers to provide extra functionality.
  5. Call Processing and Media Servers: Avaya call processors allow for more robust functionality if needed. For basic customers, a low-level call processor is needed, whereas for a high-level call center, an enterprise call processor is more fit.
  6. Media Gateways: Media gateways or gateways allow for traditional phone service to be added onto your SIP solution and your data network.

SIP Trunking - Upgrade your POTS and PRI to SIP

SIP trunks are becoming more prevalent for businesses.

First, there were POTS lines or plain ordinary telephone lines. Standard phone lines were provided over copper pair wires and you purchased as many phone lines as you needed for your business. If you needed phone lines to perform the same function, you would have your provider group them or put them in a roll or hunt group.

Next, there was voice PRI/T1s that was an alternative to provide POTS lines through a channel bank or could be seamlessly integrated into your phone system through PRI or T1 card. This allowed businesses that had sufficient enough lines (approximately 16) to reduce costs, get caller ID, and have automatic roll over. This technology was provided over 2 copper pair for up to 23 simultaneous calls versus 23 copper pairs. PRI's (Primary Rate Interfaces) reduced support related issues.

When internet technology caught up and voice over IP came into the picture around early 2000, more and more providers started popping up to provide dynamic T1s. A Dynamic T1 allowed you to be used for both internet and voice; thus, optimizing your monthly expenditures of separate voice and internet connections. Businesses were able to get dynamic circuits with POTS or PRI handoff.

The success of Voice over IP (VOIP) allowed SIP technologies to be entertained as SIP provided a more open standard, drove down overall costs, and more dynamically leveraged your internet circuit by bursting to what you need. SIP rides voice conversations over your internet connection and through your data network simply connecting over IP to your phone system. The T1 card has been eliminated to reduce points of failure. In addition, SIP opens to the door to allowing your business go to national as SIP Technology allows your business to capture Out of City/State phone numbers to increase your geography.

SIP Security and Session Border Controller (SBC)

Since SIP rides over the internet, it has become even more important to secure your SIP dialtone. A Session Border Control is a voice firewall that prevents hacking attempts. For best practices, a SBC is always recommended.

SIP Endpoints: Hardphones, Softphones and Devices

SIP can either be pushed out the trunk level for dialtone or at the device level (internal). For businesses that want a true end to end IP solution, SIP trunks and IP endpoint environments are the way to go to reduce IP and network utilization. SIP softphones make it easy to communicate when on a mobile device through a portal or a simple app. SIP devices such as overhead paging, Fax solutions, and SIP conference room phones have been created to round out your phone system solution.

SIP Provide Chicago and Avaya SIP

No matter if you are looking for a SIP dialtone solution or are in need of an Avaya SIP solution, Converged can help. The Avaya Server Edition has been created in order to provide a true end to end IP solution for those in need of a robust phone system.

As a reminder, SIP is supported by almost every manufacturer of IP phones, Gateway, IP PBX, and Call Manager.

Some Avaya SIP Solutions include:

  • SIP Trunking
  • SIP Endpoints
  • Avaya 1600 SIP
  • Avaya 9600 SIP
  • Avaya 4620 SIP
  • Avaya One-X SIP
  • Avaya Server Edition
  • Avaya IP Office
  • Avaya Aura

The CCS Support group has a team of professionals to design, implement, and train on the latest technology on the market today. Our account manager works with your firm to find which technology might be a good fit. At times, some environments have a hybrid of a mix of technologies to accomplish different end results. Some companies use Avaya SIP, Avaya VoIP, Avaya Digital Phones, Avaya Mobile, Avaya Wireless and Avaya Analog Phones in a mixed environment to provide ultimate redundancy and resources.

For more information on SIP solutions contact the CCS Avaya Chicago Sales team at 877-598-3999.

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