[gorbypark]

The company I work for (full time contract) uses Skype as their communications platform. Besides notifications sometimes being wonky and getting false missed call notifications (this only happens like once a month), it works well. I also have like $4 in credit left, I sometimes use it to call foreign numbers. It's a shame, really, since it works well and I in no way need a subscription because I use maybe $1/year in credit.

[sandbach]

Similar situation here. My company uses Skype for all in-house video calls, in large part because none of our clients uses it. So far, I haven't had any problems with it. The same cannot be said for Teams.

[amyames]

Linphone works good for internal use and is free to other linphone users.

The drawback is that unless you can in a newer version, you must choose between using your free linphone video messenger account OR your external sip account that can do landlines.

Having mentioned both in this thread: my small business is using grandstream phones that receive calls on twilio [because it’s the only one that will ring up to 10 extensions on a single login], and then competitively make outbound on all the others I mentioned based on dialing patterns.

And then we use linphone for internal video, since we’re a Linux shop and teams is out. [it’s wonderful but just exasperating that I can’t configure a second account and use it for everything.]

Linphone otoh will call a proper SIP address for free, eg ourtelephonenumber@twilio or [e-mail] so I can conference in Cisco tandbergs, or I can conference in someone on one of the grandstreams that way. [when linphone is configured as a linphone rather than a SIP phone]