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Sangoma Talk is only supported for User Management users whose primary linked extension is of type PJSIP. Now is the time to migrate users to PJSIP, and there are tools available to help you do that. If primary extensions are using chan_sip technology, you can still support Sangoma Talk by creating new user/extension pair and manually linking them to the existing chan_sip extension. See this section for more details.
When Sangoma Talk is enabled for a user linked to a PJSIP extension, the Sangoma Connect module automatically increments the extension's 'max contacts' parameter in order to allow multiple registrations to the same extension. It also sends the necessary client provisioning data to the client via the Sangoma Cloud which in turn allows the Sangoma Talk client to be provisioned with SIP credentials for registration.
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Once you install and enable the Sangoma Connect PBX module, the Talk Agent is deployed on your PBX server. This agent is required for communications between Sangoma Cloud and your PBX. In the unlikely event there is a failure in the installation of the Agent, you can again execute the command for installing and starting the Connect Module.
Domain Security
As a requirement of module install, an FQDN is automatically generated which maps to the IP of the PBX. The FQDN can be seen as the "Domain" when browsing to Module page in the PBX GUI, and follows the format [LongString].connect.sangoma.com. A malicious user could potentially use this FQDN to identify a specific IP as belonging to a PBX and tailor their targeting accordingly. As always, it's critically important to ensure that PBXs are secure, with the primary step being to enable and configure the PBX Firewall module.
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The Sangoma Talk client is capable of video calls between local extensions. You must have a current version of Asterisk 16 (or higher) and you must ensure that 'Video Codecs' in Asterisk SIP Settings is enabled and that the h264 codec is listed. The allow/disallow fields on the Advanced tab of the individual extensions must not have a config that restricts usage of the h264 codec. It is conventional to leave the allow/disallow fields unpopulated so that the default codec selection in Asterisk SIP Settings is used for the extension(s).
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The contacts that are included in the Talk app include the PBX's internal extensions as seen in User Management. A user's globally recognized avatar from Gravatar is automatically displayed.
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