Is this a PSTN gateway?
If so...
Is Caller ID subscribed to? Test a line with a stand alone CID device/phone.
Is the correct Caller ID method (for your region/provider) set in the gateway?
If you are using the Bellcore type (North America, and some other regions), is there enough of a wait, after the first ring (CID is sent between the first and second ring), to collect the information?
Link up your team and customers Phone System Live Chat Video Conferencing
Hosted or Self-managed. Up to 10 users free forever. No credit card. Try risk free.
Check your inbox!
We’ve sent you an email. Click on the button in the email body to verify your email address – (if you can not find it, check your spam folder).
Upon verification you will be directed to the 3CX setup wizard.