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Category: SIP Trunking

Call 48 Explains What a SIP Address Is and How to Get One

If you are new to SIP reselling then you may not know you have a SIP address. Here Call 48 explains what a SIP address is, where to find it and what it does. SIP or Session Initiation Protocol is used to initiate or terminate live communication sessions from phone calls to instant messaging. 

A SIP address is similar to an email address as it serves as a locator of the user and even looks like an email address. Like email addresses, they are comprised of two parts: a username, and a domain. For example, if your name was Sam, you might have the following identical SIP and email addresses: Sam@voipreseller.com and sip:Sam@voipreseller.com. Your SIP address allows you to participate in SIP based communication over the Internet. 

What makes SIP address even more powerful is that it is personal like an email address. While a telephone number is registered to a specific device, a SIP address follows the person it belongs to. This gives SIP users access to new features that standard landline telephone services simply do not offer. With the increasing prevalence of VoIP in the corporate and consumer markets comes the gradual migration from the use of telephone numbers to the use of SIP addresses.

The easiest way to obtain a SIP address is by creating an account with an online service. Like creating an email account with Google or Yahoo, you will be provided with an address (i.e. yourname@gmail.com). However, your SIP service provider may allow you to create SIP addresses within your own domain as well (i.e. me@thisisme.com). Call 48 allows customers to use the registered domain name of their companies to create SIP addresses free of charge.

Those using standard telephones can reach you on your SIP address, all you need is a regular telephone number which forwards to your address. If you want to call people who are using regular telephones, your SIP service needs the ability to call out to regular telephone numbers, and Call 48 can provide you with one or both of these services.

Want a SIP address? Contact Call 48 to obtain yours today!

Call 48 Announces New VoIP Portal Launch


Call 48 introduces our upgraded VoIP Portal for both wholesale and reseller customers. The new state of the art, proprietary portal makes it even easier for our telecom customers to control their account settings with a cleaner interface.

The new Call 48 VoIP Portal offers more complete and easier control than ever before. With mobile workforce reaching an all time high, the VoIP Portal grants better access to individual employee accounts. With much better access to your employees accounts you can now segregate out what levels of access they have and change them when needed.

With changes to the different action features, we have simplified the way you handle account management. Now you can have call forwarding with preconfigured forwarding, have your call forwarding directed toward our enhanced PBX and also forward to local numbers.

With one of the largest footprints in North America, Call 48 continues to focus on our DID network and increased our DID provisioning features. Now telecom providers have access to our full on-net footprint for everywhere that we have on-net DIDs. This now gives our customers access to our inventory of almost 15,000,000 on net and off net DIDS for real-time purchasing.

If you’re an existing customer that has not yet had access or has not been migrated as of yet, please reach out to your sales executive so they can get the process expedited. For new customers, sign up now to take a free demo of VoIP Portal.

SIP DID Origination Phone Numbers

With Call 48’s SIP DID virtual phone numbers, the costs are just a fraction of the cost of standard analog or digital lines. With origination and SIP DID service, you are able to receive incoming calls and enjoy premium voice quality.

Our origination DID service is not only convenient, it is inexpensive. There is no reason for concern as to where you are located, as Call 48 delivers calls using SIP trunk anywhere in the world. This opens the doors to businesses to get local access numbers to their customers at an incredibly low price. And, with no minimum wait time or further dependency provided that your company has access to Internet connection.

Call 48 users can expect to spend under $50 for 200 DIDs a month, which certainly is a savings in comparison to many companies that offer this service. The cost savings and quality of Call 48 VoIP services and solutions are amazing and the features  offered are outstanding. The cost savings is a definite plus with users able to save up to 75 percent annually. 

For the business that is in search of SIP Trunks and VoIP origination services, Call 48 is definitely a service that can provide you an optimal experience with exceptional value and outstanding customer service. Contact a Call 48 DID team member now to purchase voip origination and SIP DIDs.

Glossary of Acronyms Terms and Hosted PBX VoIP Definitions

PBX is an abbreviation for Private Branch Exchange, a private telephone network used within an enterprise. Did you know what PBX actually stood for? At Call 48 we know that VoIP technology is always upgrading and evolving to meet the needs of customers and because of this, new usages, terms and definitions are always emerging. Here Call 48 helps you navigate all the latest cloud-hosted PBX terms and definitions that virtual companies will use.

ACD (Automatic Call Distribution): A system that allows representatives to speak to callers in the order that they call. If you’ve ever called somewhere and had an automated teller announce that “your call will be answered in the order in which it was received,” you have experienced ACD.
Asterisk: Free, open-source software that runs under Linux, Mac OS X, and several variants of Unix on computers powered by x86, PowerPC, and other processor types. Provides PBX capabilities for VoIP and (with appropriate interconnection hardware) digital and analog telephone systems.
Automatic callback: This term can refer to a PBX feature that lets employees calling from outside the office avoid long-distance charges. The employee places a short call to the PBX, which calls the individual back using an inexpensive (VoIP) calling plan. Confusingly, the term also refers to a feature that sets a phone to make multiple attempts to reach an unavailable number, alerting the caller when a connection is finally made.
Dial-By-Name Directory:A database that allows callers to use their phone keypads to dial the name of the person they want to reach (e.g. 76484 for SMITH).
DISA (direct inward system access): Service provided by PBX systems that lets authorized personnel dial into the PBX from external phones, so they can, for example, place calls through the PBX.
Hosted PBX: A Hosted PBX system is one that is made available through the internet. Unlike a non-hosted PBX system, your office won’t be required to host telephone equipment because the hosting company does if for you. This will significantly lower the cost while providing the opportunity for easy expansion.
IAX (inter-Asterisk exchange): VoIP signaling protocol that provides for control and transmission of streaming media over IP networks. It enables connections between Asterisk servers as well as between servers and clients.
IP PBX (Internet Protocol private branch exchange): A system that, by using the Internet Protocol over Ethernet networks, provides the same functions as, and often extends the capabilities offered by, traditional PBX installations.
IVR: Stands for interactive voice response and is the part of an auto attendant system that provides voice prompts and information to callers and takes action based on the buttons they press on their phone keypads or their spoken answers.
Porting: The process of moving a phone number to a new telephone service. Contact V1 VoIP to find out about our porting rates.
Ring group: A set of extensions that the PBX rings in the order determined by rules the administrator sets.
SIP (session initiation protocol): A set of IP telephony signaling conventions, mostly used for VoIP, but usable for electronic delivery of any multimedia type.
Trunking: An IP PBX’s process of merging data from multiple calls into a single set of packets to reduce transmission overhead.

SIP Based VoIP Origination Carrier Services

With our SIP-based platform, Call 48 gives resellers access to a reliable, nationwide footprint and the ability to receive inbound calls from the PSTN via IP to delivering calls their end users across the country from a single interconnect.

As a premier CPAAS provider, Call 48 offers state of the art SIP origination services and soluations, a call delivery may be switched to a different location (such as IP PBX) at a moment’s notice. This makes it ideal for business organizations with employees in multiple locations or virtual offices created where the appearance of physical presence within a specific market can be established.

Call 48 resellers receive the power of state of the art technology combined with simplicity of ease of use. Call 48 resellers gain access to origination service features include:

* Competitive domestic outbound pricing

* International calling price packages and full call barring capabilities

* Simple, fully-featured end-user administration web portal and XML API

* Simple pricing structure: concurrent sessions + usage MRCs

* Concurrent user-session limits

* Robust reporting

Call 48 resellers receive direct access to provision DIDs and features on our proprietary VoIP Portal platform in real time. This means that with a little API development on the customer’s side, end users can soon be ordering their DID phone numbers, managing the features they wish to use and account on our administration servers without any of the customer service swivel chair common with other providers.

Our SIP based origination carrier services enables providers with local DID numbers and inbound call sessions for their end users, giving extreme flexibility.

The Call 48 origination carrier service network is geo-redundant offering all of our customers, both new and established, access to a world class network. Contact a member of the Call 48 origination team today to add our service to your portfolio of products.

Call 48’s Wholesale SIP Termination Guide

V1 VoIP's guide to wholesale SIP termination services solutions including SIP trunking

Call 48 offers carrier grade wholesale VoIP services including premier level SIP termination. SIP termination is one of the product offerings that Call 48 wholesale agents are constantly asking for. SIP termination allows small and medium sized businesses to take complete advantage in terms of expanding their communications with other businesses and clients. Here is Call 48’s guide on all things SIP termination.

SIP stands for Session Initiation Protocol. SIP termination is a service that allows you to use VoIP technology in order to make outgoing voice calls to external phone networks around the world. SIP trunking is the use of VoIP to facilitate the connection of a private branch exchange (PBX) to the Internet. In effect, the Internet replaces the conventional telephone trunk. This allows an enterprise to communicate with fixed and mobile telephone subscribers worldwide.

In order to take advantage of SIP trunking, a business must have a PBX that connects to all internal end users, an Internet telephony service provider (ITSP) and a gateway that serves as the interface between the PBX and the ITSP. One of the most significant advantages of SIP trunking is its ability to combine data, voice and video in a single line, eliminating the need for separate physical media for each mode. The result is reduced overall cost and enhanced reliability for multimedia services.

Call 48 wholesale SIP termination provides features such as:

  • Video conferencing
  • Voice calls
  • Streaming media
  • Instant messaging
  • Playing online games

Contact a member of the Call 48 SIP termination team to find out more about our SIP product offerings and our extremely competitive pricing.

Wholesale US VoIP SIP Trunking

At Call 48 our wholesale SIP trunking domestic usage is provided with high quality, aggressively priced long distance termination to the US. We focus on high ASR and low trouble ticket count. Whether a metropolis or rural area, we will get the job done and without cutting corners. While we believe cost is key, Call 48 also focuses in on accuracy. Our billing system is bar none and will accommodate a wide variety of formats requested in the industry with high probability we can meet your requirements.

In addition to our premier CPAAS technology, to best suit our wholesalers, Call 48 has designed the industry’s most advanced Least Cost Routing (LCR) intelligence, routing to more than 150 direct interconnections. We then boosted performance by developing and deploying our own quality grooming technology.

Our growing team of developers work persistently to refine our services and create better products for Call 48 and our wholesale partners. Developing our toolset in-house means we have ultimate control over how they work. You will never hear us say “we’ll need to open a ticket with our switch vendor”… because we are the vendor, architect and developer of every service and product we provide our customers.

Along with our wholesale SIP Trunking services, Call 48 offers flexibility to accommodate many billing formats, including LRN, LATA/OCN, fixed price, cost plus or customize a plan to your specific needs. We can also bill jurisdictionally to either interstate, intrastate or local, as well as non-jurisdictionally. Rates changes are infrequent and custom pricing is available based on targets and volumes.

We understands what is important to you – Quality, ASR and cost – and we deliver. The biggest LEC’s and IXC’s in the world already trust Call 48 with their traffic. Take the time to find out what we are about and benefit from our experience. Contact a member of the Call 48 wholesale team today to take advantage of our competitive pricing.

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