For RingCentral customers (RingCentral Office Coupon – $20 Off First 3 Months any plan), there are good news and bad news. The good news is that RingCentral VOIP is SIP based and you can configure Voicent software to use that. The bad news is that it does not support DTMF tones. Without DTMF tones, Voicent software cannot know whether a key is pressed. So if you use autodialing and expect callees to press a key to transfer, for example, ringcentral is not the service for you. However, you could use the service for predictive dialing, since no key press is required.

To configure Voicent to use your RingCentral service, login to your RingCentral account, select My Settings. (If you do not see My Settings, that means your ringcentral line is not setup correctly. You must contact Ringcentral support to change your lines to “use your own softphone like x-lite”)

Under RingCentral Digital Lines, you should see all your extensions (lines) listed. Click on Setup Instruction, you should find SIP setup information for each line. You should see a pop up window containing the following information.

SIP Domain: sip.ringcentral.com:5060
Outbound Proxy: sip.ringcentral.com:5090
User Name: 18320000000
Password: 7000000
Authorization ID: 7000000

Use these values for the SIP setup of Voicent Gateway (Setup > Options > SIP). Please replace the values with your actual account values. Use User Name listed above for SIP ID, and Authorization ID for User.

Codec: PCMU
Stun Server: Use any public stun server like stun.xten.com, use default port 3478

It is working up to 12 lines. After that, the gateway failed to start. I have 48 lines with RingCentral

Yes, it looks like RingCentral has a channel limitation of 12. You have to contact RingCentral and tell them you need to use your own softphones and there are 48 of them. Basically they need to set the Digital Lines to “other phones” so it may be configured for your Softphone. (Voicent software acts as a set of softphones) Once RingCentral sets it up for you, login to your RingCentral account, select My Settings. Then under RingCentral Digital Lines, you should see all your extensions (lines) listed. Click on Setup Instruction, you should find SIP setup information for each line (similar to the email you get from RingCentral).

You should see that each line has different SIP ID, username, and password. You need to add these additional lines to Voicent Gateway one-by-one. Open Voicent Gateway, select Setup > Options > SIP, click the Add button. Enter the SIP information for that line. Make sure under lines, you set “use this account for 1 line“. It seems these lines have only 1 channel. Click OK when done.

Now go back to your RingCentral Account, find the next line’s SIP information, then repeat the above steps to add another line to Voicent Gateway.

If you are not using RingCentral Office, here is another setup article Configure RingCentral VOIP service.