Zoho integration stops working after a while

[Andriy]

Dear Community

We have a working integration of ZOHO CRM with 3CX Voip phone system. It was working fine for a while. But after few months, ZOHO no longer logs the calls to 3CX and ZOHO CRM contacts are no longer synchronised with 3CX contacts.
Could you please let me know what might have caused 3CX integration to stop working and how do i fix this?

thank you

 

[StefanW]

v15.5 SP6 or v16.0?

 

[Andriy]

Dear Stefan

i am using v16

 

[Andriy]

Is there a difference in regards ti what version is used? is v16 not fully supported yet?
Please advise.

thank you