Description This article describes Grandstream Android Phone GXV32XX as being not responsive when receiving incoming calls. The users are unable to answer or pick up calls from the LCD call screen. This scenario is seen after UCM firmware upgrade. Workaround Please try one of these methods: a. Go to UCM63XX’s WEB UI > Extension > Media > … Read more
Description Many users find it difficult to capture the Syslog from the phone or gateway devices when the issues are intermittent and difficult to replicate. Hence, you can install an external Syslog server on your machines that allow you to store and capture the phone’s Syslog the whole day. Requirements a. Windows b. Connect the … Read more
Description This article describes the issue of missing Caller ID when a call is made out from the PRI trunk to the SIP trunk via Grandstream GXW450X. Scenario E1 — GXW4502 — SIP Trunk (voipsyd06) A GXW450X is connected with a VoIP Trunk and an analog PABX on E1. When the analog PABX makes an … Read more
Description This guide summarises the common issue and troubleshooting methods listed in the official guide. Issue Troubleshooting Weak Signal 1. Increase APs for better coverage2. Increase Radio Power3. Lower Channel Bandwidth (20MHz)4. Stay close with the AP, get RSSI < 40dBm, and do the speed test.5. Select 2.4GHz as it penetrates through hard objects better … Read more
Description This article describes the recommended fax settings for Grandstream Gateways and ATAs. The suggested parameters may not apply to all environment setups. Recommendations Click Update and Apply, followed by a reboot. Troubleshooting and Logs On the Advanced Setting tab, please configure: – Syslog Server: IP of the PC with Wireshark – Syslog Level: Extra DEBUG – Send SIP Log: yes Save and Apply, … Read more
Description This article describes the steps to recover the Grandstream video conferencing unit (GVC32XX series) that is unable to boot up properly or stuck at booting up with the logo. Steps 1. Unplug GVC32XX from the power adapter 2. Copy the firmware files (.bin file) to the root directory of an SD card; otherwise, Android … Read more
Description If you are new to telephony networking and troubleshooting, this guide shows you step-by-step in setup and configuring the parameters to capture the packets locally in Grandstream devices. When we run into telephony issues (for eg. no audio, BLF keys are not working, unable to make calls, etc), in order to have the Support … Read more
Description When making outbound calls, the users may hear a ‘beep’ sound before ringing back or a call is established via HT8XX. Cause The ‘beep sound’ is part of the call waiting caller ID alert signal. The ‘Broadsoft’ feature requires the device to update “connected line ID” to the analog phone, upon receiving 180 Ringing. … Read more
Issue description Most of the time when you try to make a call via a Feature Code (for eg. *20*), you will see a message pop up ‘No dial plan rules matched’ on the phone, causing the call failure. Troubleshooting This is because the dial plan entries are not defined to allow # and * … Read more
Issue Description User is unable to transfer calls from the call queue via GS Wave iOS application. Test steps: 1. Ext. 1008 (Wave iOS) is a member of Call Queue 6500 2. Ext. 1004 dials 6500 3. Ext. 1008 picks up the call and press Transfer (Blind) to 8002 4. Repeat step 1 to 3 … Read more