Exhibit 21.1

SUBSIDIARIES

The full corporate name, jurisdiction of incorporation and registered and beneficial ownership of the issued and outstanding shares of each direct and indirect Subsidiary is as follows:

Entity Name	Jurisdiction of Incorporation
Aastra Telecom (UK) Limited	United Kingdom
Aastra Telecom Australia (PTY) Limited	Australia
Aastra Telecom Europe A/S	Denmark
Aastra Telecom Portugal S.A.	Portugal
Aastra Telecom SDN. BHD.	Malaysia
Connected Guests Limited	United Kingdom
Connected Hotels Limited	United Kingdom
Corvisa Europe Ltd	United Kingdom
DeTeWe Communications GmbH	Germany
Fernway Limited	Ireland
Inter-Tel Europe Limited	United Kingdom
Inter-Tel Japan, Inc.	Japan
Inter-Tel Lake Limited	Ireland (Malta)
Inter-Tel Technologies, Inc.	New Mexico
Lake Communications Limited	Ireland
Lake Datacomms Limited	Ireland
Lake Electronic Technologies Limited	Ireland
Mitel (Delaware), Inc.	Delaware
Mitel (Far East) Limited	Hong Kong
Mitel Austria GmbH	Austria
Mitel Belgium NV	Belgium
Mitel Business Systems, Inc.	Arizona
Mitel Cloud Services of Virginia, Inc.	Virginia
Mitel Cloud Services, Inc.	Texas
Mitel Communication Technologies (Beijing) Company Limited	China
Mitel Communications AB	Sweden
Mitel Communications Finland Ab	Finland
Mitel Communications Inc.	Delaware
Mitel Communications Private Limited	India
Mitel Denmark A/S	Denmark
Mitel Deutschland GmbH	Germany
Mitel do Brasil Comercio e Servicos de Telecomunicacoes Ltda.	Brazil
Mitel Europe AG	Switzerland
Mitel Europe Limited	United Kingdom
Mitel France SAS	France
Mitel Incorporated Mexico SA de CV	Mexico
Mitel Italia S.p.A.	Italy

Mitel Lease NV	Belgium
Mitel Leasing, Inc.	Arizona
Mitel Netherlands B.V.	Netherlands
Mitel Networks (New Zealand) Limited	New Zealand
Mitel Networks Asia-Pacific Limited	Hong Kong
Mitel Networks Holdings Limited	United Kingdom
Mitel Networks Limited	United Kingdom
Mitel Networks Pension Trustee Company Limited	United Kingdom
Mitel Networks South Africa (PTY) Limited	South Africa
Mitel Networks, Inc.	Delaware
Mitel Norway AS	Norway
Mitel RUS OOO	Russia
Mitel Schweiz AG	Switzerland
Mitel South Pacific Pty Ltd.	Australia
Mitel Spain, S.L.	Spain
Mitel Sweden AB	Sweden
Mitel Technologies, Inc.	Arizona
Mitel Telecom Limited	United Kingdom
Mitel US Holdings, Inc.	Delaware
MNC I Inc.	Delaware
MNC II LLC	Delaware
ShoreTel Australia Pty Ltd.	Australia
ShoreTel Communications Private Limited	India
ShoreTel France SARL	France
ShoreTel GmbH	Germany
ShoreTel International, Inc.	Delaware
ShoreTel Philippines Corporation	Philippines
ShoreTel Pty Ltd.	Australia
ShoreTel Singapore Pte. Ltd.	Singapore
ShoreTel UK Limited	United Kingdom
Swan Solutions Limited	United Kingdom
Telepo Holding AB	Sweden
Telepo Limited	United Kingdom
TigerTMS Asia-Pacific Co, Ltd	Bangkok
TigerTMS Limited	United Kingdom
TMS Comtelco MEA FZ-LLC	Dubai