Grandstream IP PBX UCM – Completion Request / Busy Camp-On

Grandstream Call Completion Busy Camp on

Description This article illustrates the scenario when the caller requests Call Completion when called party is busy with Grandstream IP PBX UCM6XXX. You may refer to the complete guide here. By default, when the Call Waiting feature is disabled at the Extensions and IP Phones, the Call Completion request works only on unanswered or timeout … Read more

Grandstream Android Phone GXV32XX is not responsive when receiving incoming calls

Grandstream GXV32XX is not responsive in answering calls

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

Public RADIUS Server Authentication with Grandstream GWN Access Points (Internal Splash Page)

Public Radius Server Grandstream GWN AP

Description This article describes how to set up the captive portal feature on the GWN76XX series using Public RADIUS authentication by idBlender. This is useful when you do not have the environment to install a separate server for testing and troubleshooting purposes. Step-by-step Go here to create an Wifi username and password 2. Click ‘Test … Read more

Understanding PPI mode: DOD Number when Call Forward to External Number

Description This article explains P-Preferred-Identity (PPI) Header in UCM’s INVITE message when UCM forwards the call from the extension to an external or mobile number. Test Steps Configure a VoIP Trunk Go to Advanced Setting and enable Send PPI Header and set PPI Mode to ‘DOD Number’ Configure DOD number: ddd9955 and DOD Name: DDD9955 at … Read more

Forward Original Caller ID in Grandstream IP PBX UCM

Grandstream Forward Original Caller ID

Description Call forward makes the remote working solutions more efficient and ensures continuity of business operation. This article describes the settings required to allow the forwarding of the original Caller ID of external numbers in Grandstream IP PBX UCM. 1. Make sure that the UCM has the latest firmware version 2. Make sure the following settings … Read more

How to Block Ghost Calls on Grandstream IP Phones

How to Block Ghost Calls on the Phones

Description Ghost calls will usually affect the phone level. You may find it annoying by getting authorized calls. You can increase the security on the affected phone by setting the following parameter to YES in Grandstream IP Phones – GXP16XX/17XX/21XX and HT8XX ATAs models. Validate Incoming Messages Check SIP User ID for Incoming INVITE Accept … Read more

How to Enable SFTP Data Sync in Grandstream UCM with MAC OS

MAC OS SFTP UCM Data Syncing

Description This article describes the configuration steps on how to enable SFTP Data Sync in Grandstream IP PBX UCM with MAC OS. Step 1: Follow this guide to enable SFTP and allow File Sharing in your Macbook Step 2 Navigate to UCM’s Web UI > Maintenance > Backup > Data Sync and enter SFTP’s Administrator … Read more

Pending Delivery status in GDMS UCMRC Plan

Description ‘Pending Delivery’ indicates that the changes on the settings are not pushed to the UCM630X series successfully via GDMS. When you try to assign parameters to the offline UCM, it will display ‘Pending Delivery’. When UCM is back online, the pending parameters will be re-assigned to the UCM. Make sure that TR069 is allowed. The users … Read more