Spark has since confirmed the offer has lapsed in a statement to the NZX.
Spark's offer was rejected by TeamTalk's board as being too low and opportunistic and the companies traded barbs over Grant Samuel's independent valuation of $1.52-to-$2.11 a share for the smaller firm.
Sowry acknowledged that the board made the wrong call to buy Farmside in 2012 for $31 million in cash and scrip and had "taken the hit on the balance sheet for the last two years".
However, he was more optimistic about the future partnership with Vodafone, saying "we can actually turn this company around" and that the transaction "supported the directors' view that the value of TeamTalk shares is at the higher end of that range".
Vodafone chief executive Russell Stanners told TeamTalk shareholders the acquisition would let his company "move further into the rural market" which Vodafone has been increasing its exposure to over the past five or six years.
When asked why Vodafone didn't simply mount a rival takeover bid to Spark's, Stanners said his company already has fibre assets in Wellington's CBD, and that buying the assets made "no sense" when a partnership could cut costs for both parties.
Miller said a partnership with Vodafone would help lower the cost of putting 15 percent of its Wellington fibre network underground when the city's overhead trolley bus wires are removed, and was also optimistic about TeamTalk's mobile radio business which had seen higher demand as a result of health and safety legislation and emergency responses needing greater and more immediate coverage than cellular, which spans 55 percent of New Zealand's geography.
When questioned about the longevity of TeamTalk's board, Sowry said the company's directors were reviewing their governance arrangements and will make an announcement in the next couple of months.
TeamTalk shares were unchanged at 80 cents, while Spark shares rose 1.1 percent to $3.54.