is 15.04 KB, has a resolution of 986x352 pixels and was uploaded on January 12, 2021 @ 10:46 pm by user: joshuaber. It is filed under the tags: logo, dualtone multifrequency signaling, computer software, telephone call, brand. Click the blue button at the top to freely download: Telephone Call Call-recording Software Centre Dual-tone Multi-frequency Signaling Vocalcom png.