
JAZ'S TECH BLOG
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How to migrate from Grandstream UCM62XX to UCM63XX
With Grandstream UCM63XX released, I'm sure some of you might want to migrate from your old UCM62XX over to UCM63XX. You can do it easily...

Issues encountered while configuring CLICK2CALL in UCM and how to resolve them
While I was configuring CLICK2CALLwith UCM6302 in my environment, I encountered several issues, and I managed to fix them along the way....

How to configure CLICK2CALL in Grandstream UCM Series
CLICK2CALL is a popular feature in UC solutions that allow the users to make a call after they click an object (e.g., button, image, or...

How to increase contacts capacity in the Grandstream GXV series
By default, the capacity of the contact in the Grandstream GXV Series is limited to 1000 contacts. It's possible to extend the limit by...

Complete guide on how to configure new HTTPS API in UCM63XX (and generate MD5 hash token)
UCM63XX only supports the new HTTPS API Setting, and no longer supports the old HTTPS API Setting. Although UCM API configuration does...

Troubleshooting with Faxes in Grandstream ATAs
In my previous post, I mentioned the pros and cons of T.38 fax. A major downside for T.38 faxing is that this protocol depends a lot on...

Fax over IP (FoIP)
Fax over IP (FoIP) is considered an essential feature in telephony solutions. In the past, people send faxes through fax machines using...

How to read Recording FileName in Grandstream UCM
I have recently come across a user who asked me the following questions - "How do I read the recordings file name in Grandstream UCM...

SIP Fragmentation on UDP
What is SIP Fragmentation? Every link on the internet has a Maximum Transfer Unit (MTU) size which determines the maximum size of a...

Integration between Zoho CRM v2 and Grandstream UCM Series
Alright, guys. I'm back here again with another API guide. A great feature from the Grandstream IP PBX series is that it does support...

401 Unauthorized Error in POSTMAN when used along with Grandstream's IP PBX
POSTMAN is a collaboration platform for API development. Postman's features simplify each step of building an API and streamline...
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