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Which VOIP phones work with our click-to-call feature?

While Less Annoying CRM does not have a direct integration with any VOIP systems, there are some click-to-call systems that can work alongside the CRM to enable click-to-call functionality. This functionality is typically only available with VOIP softphones -- in other words, phone programs installed on your device. Desktop VOIP phones cannot use click-to-call functionality unless supported by software on your device somehow.

There are a few different ways that your VOIP system might enable this. Below is a list of VOIP phones that have worked with the CRM’s click-to-call feature in the past. This list is only the ones that LACRM knows about specifically, and may not be exhaustive, so if you don't see your provider here, you'll just need to check with your provider to see if they offer and click-to-call options for the web.

NOTE: Since LACRM did not develop these programs, we can't control whether or not they will continue to work with LACRM, nor can we control their maintenance or offer support for them. If you find a VOIP program on this list that no longer works with the CRM, please reach out to Less Annoying’s customer support.

There are a few ways that VOIP tools might facilitate click-to-call functionality in tandem with the CRM. The list below will break the options into three sections based on these different categories:

Direct API Integrations

While LACRM doesn't offer any integrations with VOIP tools, a few VOIP systems have built their own connections to LACRM using our API. You can enable your API in your account's setting and link these systems directly to your CRM account to enable more advanced interactivity with these tools -- though you should bear in mind that doing so grants the dialer tool access to your account's data. (These options are listed in alphabetical order.)

Invoco (United Kingdom only)
‍Invoco uses a click-to-dial extension to enable calling from the LACRM interface. Their API integration adds includes automatic contact creation, logging calls and call recordings to contact histories, and more. See full details at their site.

JustCall.io uses a browser extension to facilitate click-to-call, but supplements with a direct API integration that logs information back into LACRM for posterity. This includes call logging, linking to recordings of voicemails, text message logging, and more. See full details at their site.

Simplii uses a browser extension to facilitate both click-to-call and click-to-SMS. Their direct API integrations logs calls and text into contact histories, as well as linking to call recordings. You can make notes through their extension's calling pop-up functionality and those notes will log back to your contact's history as well.

Click-to-dial link protocols

Less Annoying CRM has a setting that allows you to format your phone numbers in your system as clickable links using a number different protocols that can trigger action from softphone dialers installed on your computer/device. Depending on whether your softphone supports any of these protocols, you may be able to click links in the CRM and have your computer launch the appropriate program and dial out. You'll find the CRM setting on your Integrations settings page. Here are the programs we know to support these kinds of click-to-dial protocols:

Ooma Office
Note that click-to-call only works if you are using the "Ooma Office" desktop application. To prep your CRM account, change your setting in LACRM to the "General VOIP protocol (tel prefix)." Then follow Ooma's instructions on how to set their tool as your operating system's default dialer for TEL links.

Just change your setting to the “RingCentral” option on the 'Phone' section of your Integrations page in the CRM. This is most reliable on Windows PCs. (Additional settings changes in your computer's operating system may be required.)


  • If you use up-to-date version of Skype for Windows or Skype for Mac, choose the "Skype" option in the Integrations settings page.
  • If you use Skype 7/Classic, you'll need to use the "CALLTO" protocol instead of the "Skype" option.

Browser extensions

A variety of dialers offer their own custom-made browser extensions to facilitate click-to-dial. These tools install directly into your browser and scan webpages (including LACRM pages) for phone numbers, then insert code that converts those phone numbers into clickable links. NOTE: With these extensions, the CRM is completely passive, so no settings changes in the CRM are required -- but this also means that LACRM has no control over the efficacy of these tools!

Cricket (Chrome link | Firefox link)

  • Use code "LACRM" when signing up online or over the phone for a $10/mo discount on Cricket Click Dialer!

Google Voice

  • IMPORTANT NOTE: This extension has been particularly unreliable over the years, so make sure to test it before relying on it!



  • Note that this is an alternative approach to the option in the "Click-to-dial link protocols" section above. Download from RingCentral's admin panel after creating your RingCentral account.


  • Contact Vonage for help installing their Click-to-Dial extension
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VOIP, RingCentral, Skype, phone, click-to-call, Simplii, JustCall, click-to-dial, dial out, softphone
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