RingCentral Setup Directions

In RingCentral, a phone number can be set up to connect with a physical phone on a desk, or to a third-party device like an LQ. For the LQ connection, go to the Phone Numbers screen.

Select the phone number you want to connect to your LQ, then click Phone Properties.

Click the Change Phone button and in the pop up window, select “Bring Your Own Device”
It will ask where the Emergency Response location is, enter the address where you are located and click Next.
Under Select Device, click “Set up manually using SIP” just below the search box.
In Step 1, select NO for TLS
In the Outbound Proxy dropdown, select the first SIP connection for the region you are located. In this example, it is using sip10 from the United States.

NOTE - If you are setting up more than one phone number for your LQ, be sure to use the same Outbound Proxy for all of the numbers. If setting up more numbers on a second LQ, you are welcome to use a different Outbound Proxy, as long as they are all the same in that instance.

Take a screenshot of this information as you will need to enter it into the LQ in the next steps.

LQ Configuration

Go to CCM > Accounts > SIP

First set up the SIP Server Settings

SIP server settings:

Registration/Proxy IP/Hostname: This is the Outbound Proxy from RingCentral but without the port number.

Registration Port: 5090 (or assigned port) from Outbound Proxy Port

Domain: sip.ringcentral.com

SIP Transport Protocol: UDP/TCP

SIP Transport: 5060

SIP Disconnect on server loss: Unchecked

NAT Keep-Alive Format: Disabled

Account:

Label: Phone Number (or preferred label)

User: UserName#AuthID (it is both the user name and Authorization ID put together but with a # in between)

Password: Password

LQ Assignment: Assign to LQ

IF TRYING TO CONNECT MORE THAN FOUR SIP LINES, YOU WILL NEED TO CREATE TWO DIFFERENT RINGCENTRAL INSTANCES IN THE LQ AND HAVE FOUR LINES GO TO sip10.ringcentral.com and FOUR LINES GO TO sip20.ringcentral.com

!!! UPDATE AS OF 2/25/2025 - RingCentral has set up two new SIP proxies for BYOD devices: sip12.ringcentral.com and sip22.ringcentral.com. The old SIP proxies will remain in service, but could be shut down at a later date. If you decide to transition your devices to the new SIP proxies, RingCentral has provided the following steps:

Whitelist the RingCentral supernets on your network equipment:
- 208.87.40.0/22
- 103.44.68.0/22
- 104.245.56.0/21
Manually configure the SIP proxy of your devices as follows:

Old SIP proxy address	New SIP proxy address
sip10.ringcentral.com	sip12.ringcentral.com
sip20.ringcentral.com	sip22.ringcentral.com

Follow this link to view RingCentral’s article on recommended network configurations.

Second Update 3/5/2026:

It appears that SIP10.Ringcentral.com and SIP20.Ringcentral.com is starting to be forcibly disabled. We have received some reports of devices not reconnecting after reboots. Most concerning, lines that are statusing correctly (green in LQ or monitoring in EHX), but with no audio passing. It appears that in addition to the new proxy addresses, the RTP port range has also changed, causing firewalls to block the new port being used for audio on the SIP calls.

If you are experiencing issues with previously working installs involving RingCentral, please consult with your IT team. Port ranges found here under line 10:

https://support.ringcentral.com/article-v2/Network-requirements.html?brand=RingCentral&product=RingEX&language=en_US#:~:text=In%20principle%2C%20firewall%20rules%20need%20to%20be,endpoints%20that%20have%20the%20same%20row%20content.

This is a side-by-side comparison showing what goes where.