is 512.00 KB, has a resolution of 1000x1000 pixels and was uploaded on April 30, 2019 @ 1:25 am by user: dennigel. It is filed under the tags: videotelephony, android, telecommunication, conference call, wifi. Click the blue button at the top to freely download: Ip6 Grandstream Networks VoIP Phone Android Telephone Session Initiation Protocol png.