The office environment can often be an echoey environment. Hard surfaces and materials such as glass, concrete or metal can cause sound to echo. In this case, the sound you speak during the phone call may be reflected back and cause an echo in your headset. The products in the EPOS IMPACT series are produced taking these conditions into consideration. Some products also feature ultra noise filtering. It is important to choose a professional headset to prevent these acoustic echoes. Making acoustic arrangements to reduce echo in the office environment is also an alternative. You can use sound-absorbing materials such as soft surfaces, carpets or curtains.
Another element that can create an echo is the microphone and speaker position. Positioning between the phone's microphone and speaker may cause echo. If the microphone and speaker are too close to each other, the sound picked up by the microphone may be reflected immediately back from the speaker. This can cause echo and feedback problems. In addition to changing headphones, increasing the distance between the speaker and microphone will solve this problem. 
Another element that creates echo is the delays that can occur when the voice signal is transmitted over the phone line or communications network. In this case, the other party's voice may arrive in your headset with a delay and cause an echo. You will not encounter this problem with EPOS products.
Incorrect pairing or connection issues also resonate. There may be problems with the wireless or wired connection used to connect your headset to your phone or other devices. Such connection problems can cause disruptions and echoes in the transmission of sound. You can enable echo cancellation or noise cancellation features in your phone's settings. Another solution may be to buy a quality headset. In this regard, the model of the phone and the correct headphone positioning should be done accordingly. You can find the headset suitable for your phone model on the EPOS compatibility site and see the required cable. Cables are very important at this stage. You can choose the headphones with Easy Disconnect (ED) connection in the EPOS wired headset product range and position the appropriate telephone cable. For example, if your phone is Avaya, you should choose a suitable cable, if it is Yealink, you should choose a different cable. Checking the connection in wireless headphones or trying the headset with another device will help you identify the problem to see if it is compatible with the phone.
DECT (Digital Enhanced Cordless Telecommunications) headsets may have some reasons for echoing in the office environment. Providing two-way communication, DECT headsets use a wireless communication technology. These headphones have both microphone and speaker functionality, so they provide two-way communication. If a microphone and a speaker are used at the same time, the sound received by the microphone may be reflected back from the speaker and cause an echo. Choosing DW, SDW or similar products from the EPOS IMPACT series will prevent such echoes. These headphones with a base station not only make pairing easy, but also provide you with uninterrupted communication.
The design of the ear cushions is a detail that should be considered regarding the penetration of external sounds. For a headphone to block out noise, it must fit your ear properly. The right headphone selection must be made. Poor design of ear cushions results in inadequate sound isolation. Likewise, choosing the wrong product. The wrong choice may be insufficient to block outside sounds from entering. In an office environment, surrounding sounds entering the headset microphone and reflecting back may cause echo.