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jjrh
diane, lot of cisco phones, yealink, polycom, I think aastra
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diane
I was guessing cisco. But thank you for the others too.
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jjrh
Some of it is hidden, but broadsoft uses XMPP for it's UC solution
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jjrh
so a lot of hardware manufacturers are forced to ship xmpp
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jjrh
https://edocs.mitel.com/UG/EN/6900i%20Series/5.0/6800_6900_SIP_Admin%20Guide_5.0.pdf apparently mitel phones do too