Pro forma capital structure This is from their original news release
Pro-Forma Capital Structure
"Upon closing of the Acquisition, Sangoma expects to have approximately $101 million of debt and 133,487,735 common shares outstanding, of which Star2StarHoldings LLC will own approximately 16.5 million shares representing approximately 12% of Sangoma’s issued and outstanding shares. Including all common shares that will be issued pursuant to a scheduled deferred instalment release, Sangoma will have 221,487,735 common shares outstanding, of which Norman Worthington will own directly or indirectly, approximately 25% on a pro-forma basic share count basis."
There is no indication from this press release that they will need to issue more shares. Keep in mind they have over $90 m (cad) in cash on the balance sheet as of Dec 31st, 2020. They should be able to issue more debt without the need to dilute shareholders.