Grandstream IPPBX UCM63XX – Failed to Bind a LDAP session

Grandstream UCM IP PBX Failed to bind a LDAP Session

Description This article describes the error Failed to bind LDAP session when configuring Phonebook Download Configuration in Grandstream IPPBX UCM63XX. The example shown on the phonebook Download Configuration page is not up-to-date. To avoid the binding error in UCM63XX, make sure you fill in cn=admin,dc=pbx,dc=com in the Username field. Go back to the LDAP Phonebook … Read more

Grandstream Headsets GUV30XX Hardware Diagnosis

GUV3000 Grandstream Troubleshooting

Description This article describes the diagnosis steps with low volume in the Grandstream USB Headset GUV3XXX series before submitting an RMA request with the Helpdesk. Steps a. Test with different laptops, PC, or devices b. Test with different applications for eg Zoom, Teams, IPVideoTalk, etcc. Record audio with Audacity and verify if you are able to … Read more

Grandstream IPVT10 – The MCU Resource is unavailable, please try again later.

Grandstream IPVT10 - The MCU Resource is unavailable, please try again later.

Description This article describes the error when creating and joining a meeting via IPVT10: ‘The MCU resource is unavailable, please try again later.’ warning pops up. Possible causes a. Verify if the license applied is valid under Advanced Settings > License Management b. Go to System Information and identify if there is an error message. … Read more

What is the difference between Grandstream GVC3220 (US) and GVC3220 (World)?

What is the difference between Grandstream GVC3220 (US) and GVC3220 (World)?

Description This article describes the difference between Grandstream GVC3220 (US) and GVC3220 (World). The Wi-Fi channels are different between GVC3220 (US) and GVC3220 (World) models. Some Wi-Fi channels in the US conflict with the Radar channels, and they cannot be used in the US region. GVC3220 (US) can only use the Wi-Fi channels below:2.4G: 1 … Read more

Grandstream GXW450X – Missing Caller ID

Missing CallerID GXW450X Grandstream

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

Recommended Fax Settings for Greandstream Gateways and ATA

Fax Settings for Grandstream ATAs and Gateways

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 … Read more