> For the complete documentation index, see [llms.txt](https://docs.itgrix.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.itgrix.com/faq/differences-in-connection-to-b24-via-sip-connector-and-itgrix.md).

# Differences in connection to B24 via SIP-connector and Itgrix

#### Comparisons of Itgrix and SIP-connector we have collected in the table:

|               | Sip-connector                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | Itgrix                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Advantages    | <ul><li>You can call directly from a browser with the Bitrix tab open.</li><li>You can call through the Bitrix24 mobile application.</li><li>The call comes to the user, depending on whether he started a working day or not.</li><li>Setting the logic of calls through the setting of telephony B24.</li></ul>                                                                                                                                                               | <ul><li>Call routing and voice traffic completely remain on the side of your PBX - reduces connection time and improves communication quality.</li><li>You do not need to reconfigure Asterisk, the connected IP-phones and soft-phones at workplaces will continue to work.</li><li>Telephony works with the closed Bitrix portal, calls and leads are created.</li><li>If Bitrix24 does not work, then telephony will continue to work, and after reconnecting, all calls will be downloaded to CRM.</li><li>Unlimited trunks and up to 100 simultaneous conversations (tested load)</li></ul> |
| Disadvantages | <ul><li>Voice traffic passes through Voximplant cloud telephony (servers are located in the Netherlands, which affects the speed of connection and quality of communication).</li><li>If B24 does not work, then telephony does not work.</li><li>Maximum 10 trunks and only 15 simultaneous conversations (lines) The logic of the call is configured only in B24.</li><li>Existing telephone sets and soft-phones need to be reconnected to Bitrix cloud telephony.</li></ul> | <ul><li>It is impossible to make a call from a browser, but you can use a soft background - an additional program on a computer or a smart background connected to Asterisk.</li></ul>                                                                                                                                                                                                                                                                                                                                                                                                           |