IMPORTANT! As of January 1, 2021, telephony options are available only to Bitrix24 commercial plan users. Please see Bitrix24 pricing page for current information.
Bitrix24 is #1 free CRM for call centers. You can start making and receiving phone calls from Bitrix24 CRM as soon as you register free cloud version. Integration with telephony provider is NOT required (but possible). You can rent local and toll free phone numbers in 43 countries worldwide for only $4-$11/mo. Our calling rates are extremely affordable – one to three cents a minute. VoIP phones, SIP phones, softphones are all supported, but not required.
* Please note that the information may have changed since the publication. For current prices and features please visit Bitrix24 pricing page.
P.S. If you share this page in Facebook or Twitter with hashtag #bitrix24, you'll automatically get a chance to win a 12-month subscription for Bitrix24 Professional ($2400/yr value)
Bitrix24 CRM manual is available here. If you are interested in buying self-hosted editions of Bitrix24, which come with API, CMS and source code, can be easily customized and integrated with other tools, please download a trial version here.