Salesforce/Slack
Slack is a noteworthy contender in this market, Arnold said. Salesforce completed its $27.7 billion acquisition of the workplace communication tool last summer.
The Salesforce acquisition raises questions about Slack’s future in unified communications, he said.
“They’re still a viable enterprise platform that is widely used,” Arnold said. “It’s just not clear to me if that’s going to be their long-term home.