If you have a desk at work then chances are you have a phone on your desk. The kind of phone that is on your desk probably has a lot to do with what your job position and duties.

If you are working in a call center, then odds are you have an entry level phone that is equipped with just enough to get the job done. If you hold an inside sales position then you might have more of a mid-range phone. Perhaps something with programmable BLF keys or HD voice etc.

When you start to get into a job position that has an executive role, then you might have a use for a more high-end phone. A phone that is packed with features that can help you navigate through your day-to-day activities better, oh and a color touch screen too….obviously.

What would be a good example of a phone like this? Ahh, how about the Yealink T48G? When it comes to Yealink’s T4 Series, the T48G is the top of the line. It also has a 7” color touchscreen display, and just about every VoIP feature under the sun. To me, that sounds like the perfect executive phone!

Yealink SIP-T48G

But speaking of every VoIP feature under the sun, there is one thing that you are able to do on the T48S really stood out to me. Not only is this a cool and unique feature, but I feel like it can really come in handy for someone on the executive level who may be in charge of several people in the office.

What’s the feature? The Yealink T48G allows you to upload contact photos! Not only is this relatively easy to do, but it can really come in handy when trying to remember everyone you work with!

I am going to assume that everyone you work with has a company photo, you know, headshots for your website or email signature. These are great to take and upload to your phone contacts. Especially if everyone is assigned an internal extension, it may take a while for you to remember who is calling you.

Doing this can also help you put a face to a name and a face to a voice! So the next time you’re in the breakroom getting a cup of coffee, you can really impress everyone with your flawless name remembering skills.

Now, let’s move on to the how-to part of the blog and find out how to upload contact photos! It’s really quite simple, but it does involve some work on the web user interface. If this is something you need access to or help with, then just let your System Administrator know what you are trying to do, and grab some assistance! If you are able to tackle this on your own, then just follow these easy steps!

How to Upload a Contact Photo on the Yealink T48G

  • Click on the Directory and then go to Local Directory
  • Click Browse, and then locate a photo file from your computer
  • Click Upload Photo to upload the photo
  • You can click Delete Photo to delete the customer photo


Once you have your photo uploaded the next step will be to add the customer photo to the contact! Please note that the Yealink T48S only supports .png, .jpg, .bmp format files and the file size must be less than 5MB!

Now that you have uploaded your photo, all you have to do is follow these next steps and you will be on your way!

  1. Click on Directory and then Local Directory
  2. Click the desired entry you want to edit
  3. Select the desired photo from the pull-down list under Photo
  4. Click Edit to accept the change


And there you have it! Now that you have assigned a photo to your contact, when you place a call to the contact or receive a call from the contact, the touchscreen will display the contact photo! Just repeat the process to keep adding photos to different contacts!

Do you have a Yealink T48G on your desk? Do you use the Contact Photo feature? If so, what’s your experience been like? We want to know!

SIP phones are no doubt the hottest topic in the telecommunication industry today. You may have heard people talking about SIP phones and have no clue what they are and how you can benefit from them. Today, we will walk you through the important things you need to know about SIP phones and help you stay on top of the trend!



SIP stands for Session Initiation Protocol which is a communications protocol for integrating multimedia communication sessions. SIP phones, also known as VoIP (Voice over Internet Protocol) phones, are IP (Internet Protocol) telephones that enable your internet service provider to integrate basic phone capabilities with web, email, online chat and more through IP network.



Software-based SIP phones are the software applications that are installed onto your desktop or laptop that allow you to complete the phone calls over the internet via a computer. There are a lot of softphones available including Wengo, XLite from Counterpath, and more.

panasonic_utg300HARDWARE SIP PHONES (Physical Phones)

Hardware SIP phones function like traditional phones but they make phone calls through IP network instead of PSTN lines. SIP phones can share the existing data network with your computer and don’t need to have an extra internet service. Popular hardware SIP phones include Grandstream, Polycom, and more.


Absolutely! With VoIP adapter connecting both ethernet and your traditional phone, it functions like a standard SIP phone. VoIP Supply also offers a wide range of on sale SIP phones and refresh SIP phones giving you more options to switch to VoIP system with low cost.




  • Cost Effective: You can save a lot of money by switching to a VoIP phone system. VoIP systems offer low monthly rates which means more saving on your phone system to put back into your growing business.
  • Mobility: Simply get your SIP phone connected to the internet, you can make phone calls anywhere in the world.
  • Integration: Some VoIP phones deliver rich enterprise telephony capabilities integrating to your Outlook contacts, CRM systems, and business applications through the thousands of available Android apps.


  • Emergency: SIP phones need both electricity power and internet to operate. When the power is down, the hardware SIP phone that has a backup battery unit and the software SIP phone in your mobile phone can still work. However, during a total blackout when internet service is not available, your SIP phones won’t work.
  • Hardware and Network: In order to have high quality SIP phone calls, you will need to have solid hardware and fast network speed.

If a high level enterprise phone is on your list of “Things to buy to improve my work environment ,” then Grandstream’s newly released GXP2135 arrived just in time. The GXP2135 is a multi-line, high performance IP Phone designed for the busy worker. With its release, Grandstream targeted the goal that they have followed since entering the VoIP communications game in 2002- to connect the world through flexible and reliable communications mediums.


A delicately designed phone with features that kill

The GXP2135 flaunts a 2.8 inch LCD color display, with intuitive touch keys and an easy to control navigation menu. You can connect up to eight lines with four SIP accounts and each line has an individual dual-color line key.
you-1This design also provides four XML programmable context-sensitive soft keys and gives the user has the flexibility to program up to 32 digital, on screen speed dial keys for a more proficient, organized, business-like telephony experience.

As the handset’s HD imprint implies, the GXP2135 lets you enjoy High Definition audio for clear, crisp conversations. In the event that the conversation is for more than just your ears, the full duplex-speakerphone offers a convenient tool at the touch of a button. But, if what you are looking for is a hands-free way to communicate, or a more “on-the-go” experience, the GXP2135 has built-in Bluetooth capabilities and easily syncs with headsets. You can also connect to your mobile device and enjoy even more features such as merging contact books and calendars, and call transferring.

Moreover, the GXP2135’s Gigabit speeds at 10/100/1000 Megabits per second (Mbps) with Dual switched auto-sensing accommodate for the fastest possible internet connectivity.


More top features:

4-way audio conferencing for easy conference calls
Built-in Power over the Ethernet (PoE)
Built-in USB port for importing and exporting data
Supports EHS compatible Plantronic’s headsets
TLS and SRTP security encryption technology to protect calls and accounts
Use with Grandstream’s UCM series IP PBX appliance for Zero-Config provisioning 1-touch call recording and more
                         you-2 you-3

The GXP2135 is the the newest addition to Grandstream Networks line of VoIP Phones. The GXP2135 is an affordable phone with high-level features for your enterprise needs. If this dependable, trustworthy IP Phone is not on your “To buy” list yet, it surely should be!

To find more information or if you’d like to ask questions or pass along any comments about the GXP2135, please call us at 1-800-398-8647 and we would be happy to chat.