UPDATE 1-Canada's Mitel Networks files for $180 mln US IPO

* Says to sell 10.5 mln shares at $18-$20 per share

* Says intends to list on Nasdaq under symbol "MITL"

March 30 (Reuters) - Canada's Mitel Networks Corp, a provider of integrated communications solutions, filed with U.S. regulators on Tuesday to raise up to $180 million in an initial public offering of common stock.

The Ottawa-based company told the U.S. Securities and Exchange Commission in a preliminary prospectus that it expects to sell about 10.5 million shares at $18 to $20 per share.

The company said Bank of America-Merrill Lynch, J.P. Morgan, UBS Investment Bank, Piper Jaffray, Genuity Capital Markets and JMP Securities were underwriting the IPO.

Mitel intends to list its common shares on the Nasdaq under the symbol "MITL." (Reporting by Jochelle Mendonca in Bangalore; Editing by Gopakumar Warrier)