Exhibit 10.3 SUBLEASE AGREEMENT The parties agree as follows: Date of this Sublease: June 15, 1994 Parties to this Overtenant: COMPUTER TELEPHONE CORP. Sublease: Address for notices: 360 Second Avenue Waltham, Massachusetts 02154 You, the Undertenant: COMM-TRACT CORP. Address for notices: 360 Second Avenue Waltham, Massachusetts 02154 If there is more than one Overtenant or Undertenant, the words "Overtenant" and "Undertenant" used in this Sublease include them. Information from Landlord: HILLSIDE ASSOCIATES Over-Lease: Address for notices: 100 Ring Road West Garden City, New York Overtenant: COMPUTER TELEPHONE CORP. Address for notices: Date of Over-Lease: February 16, 1994 Term: Five years From: July 1, 1994 To: June 30, 1999 A copy of the Over-Lease is attached as an important part of the Sublease. Term: 1. Five (5) years: months: Beginning: July 1, 1994 Ending: June 30, 1999 Premises rented: 2. Approximately 8600 square feet in the building known as Tech Center 128, Building #1, 360 Second Avenue, Waltham, Massachusetts on the annexed sketch. Use of premises: 3. The premises may be used for offices, manufacturing, engineering and warehousing only. Rent: 4. The basic yearly rent for the premises is $55,899.96. You, the Undertenant, will pay this yearly rent to the Overtenant in twelve equal monthly payments of $4,658.33. In addition, the Undertenant will be responsible for 43.92% of All other expenses associated with the lease. These expenses include, but are not limited to, real estate taxes, insurance, utilities, etc. Payments shall be paid in advance on the first day of each month during the Term. Security: 5. The security for the Undertenant's performance is $0.00. Overtenant states that Overtenant has received it. Overtenant shall hold the security in accordance with Paragraph ____ of the Over-Lease. Agreement to lease 6. Overtenant sublets the premises to you, the and pay rent: Undertenant, for the Term. Overtenant states that it has the authority to do so. You, the Undertenant, agree to pay the Rent and other charges as required in the Sublease. You, the Undertenant, agree to do everything required of you in the Sublease. Notices: 7. All notices in the Sublease shall be sent by certified mail, "return receipt requested". Subject to: 8. The Sublease is subject to the Over-Lease. It is also subject to any agreement to which the Over-Lease is subject. You, the Undertenant, state that you have read and initialed the Over-Lease and will not violate it in any way. Overtenant's 9. The Over-Lease describes the Landlord's duties. duties: The Overtenant is not obligated to perform the Landlord's duties. If the Landlord fails to perform, you, the Undertenant, must send the Overtenant a notice. Upon receipt of the notice, the Overtenant shall then promptly notify the Landlord and demand that the Over-Lease agreements be carried out. The Overtenant shall continue the demands until the Landlord performs. Consent: 10. If the Landlord's consent to the Sublease is required, this consent has been received. If the Landlord's consent is not received within this time, the Sublease will be void. In such event all parties are automatically released and all payments shall be refunded to you, the Undertenant. Adopting the 11. The provisions of the Over-Lease are part of Over-Lease this Sublease. All the provisions of the Over- and Lease applying to the Overtenant are binding on Exceptions: you, the Undertenant, except these: a) These numbered paragraphs of the Over-Lease shall not apply: Inapplicable. b) These numbered paragraphs of the Over-Lease are changed as follows: Inapplicable. No authority: 12. You, the Undertenant, have no authority to contact or make any agreement with the Landlord about the premises or the Over-Lease. You, the Undertenant, may not pay rent or other charges to the Landlord, but only to the Overtenant. Successors: 13. Unless otherwise stated, the Sublease is binding on all parties who lawfully succeed to the rights or take the place of the Overtenant or you, the Undertenant. Examples are an assign, heir, or a legal representative such as an executor of your will or administrator of your estate. Changes: 14. This sublease can be changed only by an agreement in writing signed by the parties to the Sublease. Signatures: OVERTENANT: COMPUTER TELEPHONE CORP. /s/ Philip J. Richer You, the UNDERTENANT: Witness: COMM-TRACT CORP. /s/ Karen G. Dumaine /s/ John F. Polmonari