Looking for SIP Trunk providers in Hong Kong

[JoForest]

Both companies listed on this page (28VOIP & A-Z Telecom) are NOT SIP Trunk providers.
https://www.3cx.com/partners/sip-trunks/hong-kong/

They are solution providers and we cannot purchase Hong Kong phone numbers from them.

Is it possible to use 3CX as a self-hosted solution in Hong Kong? Anyone can help?

(I also contacted 3CX chat support and they suggested me to post here)

Our companies have offices in Hong Kong, China, Singapore, Thailand. Ideally, I would like to manage all my SIP Trunks with 1 provider for all countries. But Hong Kong is where our Head Offices are and we are ready to commit with 3CX if we can find local phone numbers we can use...

 

[58voip]

@JoForest, yes, you can self-host your 3CX. The SIP service of 28VOIP & A-Z Telecom is certified by 3CX. It would be much easier to configure their sip trunk with 3CX. But as you are aware they are not the local Tier 1 provider.

If you would like to get the SIP Trunk service from a local tier 1 provider like PCCW, HKBN, etc, you can still manually configure your 3CX with these providers. Many HK customers are working in this way. There is a configure guide here https://en.58voip.com/configure-pccw-trunk-3cx/ for your reference.

Our companies have offices in Hong Kong, China, Singapore, Thailand. Ideally, I would like to manage all my SIP Trunks with 1 provider for all countries.

I don't think it's possible for you to manage all SIP Trunks from 1 provider if you are willing to work with the tier 1 provider in each region especially in China. Telecommunication is strictly regulated by the Chinese government. You can not get the direct service from one provider who is out of China.

In addition, a GFW is in the middle of China and outworld's network. A private network connection is required between your China office and offices out of China to ensure better voice quality for your solution.