Account Registration Failed in Grandstream Wave Mobile with UCM Remote Connect Address

Account Registration Failed Grandstream Wave Mobile with UCM Remote Connect services

Description This article describes the error of Account Registration Failed when logging in to Grandstream Wave Mobile using the UCM Remote Connect address, but it works in Wave Desktop and Wave Web. The error occurs when an invalid certificate is uploaded. Try these 2. Go to UCM’s UI > PBX settings > SIP Settings > … Read more

Ring Simultaneously on Grandstream IP PBX UCM & Panasonic Analog PBX’s Extensions

Description This article describes the steps to configure Ring Simultaneously on the same extension range of Grandstream IP PBX UCM63XX and Analog PBX. Scenario I have an extension range (200-300) in Panasonic Analog PBX and Grandstream PBX UCM6301. They connect with a PRI Gateway GXW4501 through a SIP Peer Trunk and E1 cable. When someone … Read more

[FAQs] Grandstream IP PBX UCM6XXX Deployment Scenario and Past Cases

Grandstream IP PBX UCM6XXX Deployment Scenario
The customer has an ISDN PRI number 5600300 with 30 channels, numbers from 5600300 to 5600329. They have multiple company headquarters located in one building and want to have one primary for 3 companies. Each company has a different IVR answering the call and a dedicated number for fax.  This can be done using the DID pattern ... Read more

No Ringback Tone when making outbound calls with Grandstream IP PBX UCM63XX

No Ring Back Tone when making outbound calls with Grandstream IP PBX UCM63XX

Description No ‘ringback tone’ issue on outbound calls occurs when the PBX or UCM receives 183 Session Progress (with SDP) first and then 180 Ringing later from the SIP Service Provider (ITSP). It would be a 183 Session Progress message to play the ‘Early Media’ on the caller’s phone. Also, missing SDP in 183 Session … Read more

Grandstream UCM Remote Connect (UCMRC) Strict RTP causes no audio between IP Phones

Strict RTP Grandstream UCMRC Remote Connect

Scenario There is no audio issue in the calls between IP Phones using UCMRC. However, audio works when the call is established between the Wave app and the IP Phone with the same registered extension. Solution The “Strict RTP” option cannot be enabled while using the remote domain address of UCMRC services. When using the … Read more

Configure Remote PMS Wakeup Call in Grandstream IP PBX UC

Grandstream UCM on how to Configure Remote PMS Wakeup Call

Description A wake-up call refers to a service provided by hotels or accommodations to wake up guests at a specific time as per their request. It is a feature commonly found in hospitality management software or PMS (Property Management System) platforms. Wake-up calls are often used by guests who have early morning commitments or need … Read more

Grandstream Wave iOS Crash Application Log

Description Grandstream Wave is a softphone application that allows users to make and receive phone calls over the internet using a computer, smartphone, and web browsers. This article describes the troubleshooting steps when the application crashes on iOS devices (such as iPhones and iPads). 1. Go to iPhone > Settings > Wave > Disable Contacts. … Read more

HA Configuration Network Topology in Grandstream IP PBX UCM

Network Topology HA in switch mode Grandstream IP PBX UCM

Description Starting 1.0.23.x, Grandstream IP PBX UCM supports High Availability (HA) in Route mode. This article describes an example network diagram of HA in Route and Switch mode. HA in Route Mode The full user guide can be found under HA Configuration Using “Route” Mode section. The steps describe the topology below: HA in Switch … Read more