S135 PSTN+SIP Dual Mode Recording Smart Phone 6 Ways VOIP Network Phone IP Phone Features: 1. Support PSTNSIP Support a fixed telephone line and 6 SIP lines, switch lines with one key, and manage multiple calls at the same time 2. Support multi-party audio conference, you can add members at any time, making communication more convenient 3. Support manual recordingautomatic recordingvoice message, the recording time can reach 2000 hours, and the recording files can be exported in batches on the WEB side 4. SIP blacklist management: You can set harassing calls to the blacklist, and the phone will automatically block the number. At the same time, it is also possible to filter serial numbers with the same beginningend. 5. Address book importexportLDAPPNP: Support bulk import and export of address books on the WEB side, and at the same time, it can also automatically synchronizeupdate the address books of all phones in the same LAN 6. Fast dial + programmable keys: 3 groups of fast dial, 9 programmable function keys, personalized settings, making the operation more convenient. 7. Remote management on the WEB side: support remote management of the browser (port number 8080), and the computer can remotely log in to the phone through the browser to complete various setting maintenance such as initialization settingsTR069 8. Call transfer: When you make a call, click the option button to select transfer, and you can transfer the call with one click, which is fast and worry-free 9. Call hold: During the call, if it is inconvenient, you can press the hold button, the call will not end, press the hold button again, and the call will continue Parameter: 1. LCD display: 3.5 inches 320x480 IPS 2. Operating system: Android 7.1 3. Built-in WIFI: 802.11 bgn 2.4G (optional) 4. USB 2.0 interface: Micro usb 5. RJ45 network port: 10100M 6. RJ11 telephone interface: support DTMFFSK to display and dial 7. PSTN phone functions: hands-freehandleDTMF buttonflashrecording 8. SIP account: 6 accou