Investments	6 Months Ended	12 Months Ended
Jun. 30, 2011	Dec. 31, 2010
Notes to Financial Statements
Investments	(8) Investments During the quarter ended September 30, 2007 the Company purchased all the Series A Preferred Shares (the Series A Shares) of Unity Business Networks, LLC (Unity) for cash of $1.2 million, including transaction costs. The Series A Shares were convertible at any time at the Company’s option into 15% of Unity’s common stock on a fully-diluted basis. In addition, the Company had an option to purchase all the outstanding common stock of Unity based on a specified multiple of Unity’s 2008 revenues, as defined. On September 30, 2009 the Company received a cash payment of $766,950 in connection with Telesphere Networks’ purchase of the VoIP services business of Unity, including Zoom’s preferred stock investment described above. The transaction calls for additional periodic payments totaling $43,050 over 24 months beginning in October 2009 and a final payment of $150,000 on September 30, 2011, or $960,000 in total. The periodic payments have been received, and the remaining balance is recorded on the June 30, 2011 balance sheet as a current other receivable of $150,000.	(14) INVESTMENT IN UNITY BUSINESS NETWORKS, LLC During the quarter ended September 30, 2007 the Company purchased all the Series A Preferred Shares (the Series A Shares) of Unity Business Networks, LLC (Unity) for cash of $1.2 million, including transaction costs. The Series A Shares were convertible at any time at the Company’s option into 15% of Unity’s common stock on a fully-diluted basis. In addition, the Company had an option to purchase all the outstanding common stock of Unity based on a specified multiple of Unity’s 2008 revenues, as defined. On September 30, 2009 the Company received a cash payment of $766,950 in connection with Telesphere Networks’ purchase of the VoIP services business of Unity, including Zoom’s preferred stock investment described above. The transaction calls for additional periodic payments totaling $43,050 over 24 months beginning in October 2009 and a final payment of $150,000 on September 30, 2011, or $960,000 in total. Additional payments have been received and the remaining balance of expected payments recorded on the December 31, 2010 balance sheet are reported as a current other receivable of $166,144. The Company’s basis in this investment was originally recorded in 2007 as $1,178,709, which included the Company’s attorney fees involved in closing the investment. The investment was written down to $960,000 as of December 31, 2008. As of December 31, 2009 the investment was no longer reflected on the balance sheet.

Investments

6 Months Ended

12 Months Ended

Jun. 30, 2011

Dec. 31, 2010

(8) Investments

During the quarter ended September 30, 2007 the Company purchased all the Series A Preferred Shares (the Series A Shares) of Unity Business Networks, LLC (Unity) for cash of $1.2 million, including transaction costs. The Series A Shares were convertible at any time at the Company’s option into 15% of Unity’s common stock on a fully-diluted basis. In addition, the Company had an option to purchase all the outstanding common stock of Unity based on a specified multiple of Unity’s 2008 revenues, as defined.

(14) INVESTMENT IN UNITY BUSINESS NETWORKS, LLC

On September 30, 2009 the Company received a cash payment of $766,950 in connection with Telesphere Networks’ purchase of the VoIP services business of Unity, including Zoom’s preferred stock investment described above. The transaction calls for additional periodic payments totaling $43,050 over 24 months beginning in October 2009 and a final payment of $150,000 on September 30, 2011, or $960,000 in total. Additional payments have been received and the remaining balance of expected payments recorded on the December 31, 2010 balance sheet are reported as a current other receivable of $166,144. The Company’s basis in this investment was originally recorded in 2007 as $1,178,709, which included the Company’s attorney fees involved in closing the investment. The investment was written down to $960,000 as of December 31, 2008. As of December 31, 2009 the investment was no longer reflected on the balance sheet.