Missed Inbound Call Initiates Whatspp Message To Caller

[Tom Reed]

Any solutions that integrate with 3cx and Whatsapp to allow for an automatic message to be sent to an inbound caller if their call isn't answered?

 

[naufal]

I dont think there is any such options available of now.

 

[gentg]

Any solutions that integrate with 3cx and Whatsapp to allow for an automatic message to be sent to an inbound caller if their call isn't answered?

Yes — this behavior is already handled natively when using 3CX with WhatsApp (Meta Cloud API integration), without requiring a third-party automation tool.

When a customer places an inbound WhatsApp call and the call is not answered, WhatsApp automatically generates an incoming message event toward 3CX.

This incoming message opens the 24-hour customer service window in WhatsApp.

Once this 24-hour window is open:

• 3CX is allowed to send free-form (non-template) messages
• An automatic reply can be sent immediately (e.g. auto-reply or CRM/workflow logic)
• No paid template message is required

In practice, this achieves exactly the requested behavior:

• Customer calls via WhatsApp
• Call is missed
• The 24-hour window opens
• 3CX can automatically send a free message such as:
  
  “Sorry we missed your call — how can we help you?”

 

[Juan Marriott]

On today's integration, when the API is activated, there is not a calling option on customers app.

 

[N_G]

@gentg We implemented Whatsapp SIP check it out and let us know!
https://www.3cx.com/blog/docs/whatsapp-sip-calling/

 

[gentg]

@gentg We implemented Whatsapp SIP check it out and let us know!
https://www.3cx.com/blog/docs/whatsapp-sip-calling/

Hi

Thank you for implementing the WhatsApp SIP feature — really appreciate how quickly the team moved on this!

I’ve reviewed the blog post and will start testing it in our environments, especially in scenarios with Queue + AI routing. This is a very important addition for us and for several airline / call center projects we’re running.

Thanks again for listening to the community and continuously improving the platform.