**EXHIBIT      10.20**

**Note:      Portions of this exhibit indicated by [*] are subject to a confidential      treatment request, and have been omitted from this exhibit. Complete, unredacted      copies of this exhibit have been filed with the Securities and Exchange      Commission as part of the Company’s confidential treatment request.**

| 1. | ARTICLE                4. of 2nd                P/C (“ PURCHASE QUANTITIES AND CONTRACT PRICES”) is amended as follows                : |
|----|-----------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (Name                  of Products)                                  | (Purchase                  Quantities)                  | (Contract                  Price) |
|--------|----------------------------------------------------------------------|---------------------------------------------------------|-----------------------------------|
| 1      | MicroMAX-SDR                                                         | **[*]**Units                                            | US$**[*]**.-                      |
| 2.     | Radio-Transceiver                                                    | **[*]**Units                                            | US$**[*]**.-                      |
| 3.     | Enclosure/Aux.                  for Single B/S Products Set          | **[*]**Units                                            | US$**[*]**.-                      |
| 4.     | Enclosure/Aux.                  for Double B/S Products Set          | NIL                                                     |
| 5.     | Netspan-NMS                  1 Set for 10,000STs                     | **[*]**                  (up to cumulated **[*]**Units) |
| 6.     | EasyST                                                               | **[*]**                                                 |
| 7.     | WiFi-AP                  For EasyST                                  | **[*]**                                                 |
| 8.     | ProST                                                                | **[*]**Units                                            | US$**[*]**.-                      |
| 9.     | WiFi-AP                  For ProST                                   | **[*]**Units                                            | US$**[*]**.-                      |
| 10.    | CSCA                  S/W 1 set for 1,200 Units                      | Free                                                    |
| 11.    | External                  Cabling                                    | **[*]**Units                                            | US$**[*]**.-                      |
| 12.    | GPS                                                                  |  **[*]**Units                                      | US$**[*]**.-                      |
| 13.    | Cable                  for GPS                                       |  **[*]**                  Units                    | US$**[*]**.-                      |
| 14.    | Cable                  for Slave MicroMAX-SDR                        | **[*]**                  Units                          | US$**[*]**.-                      |
| 15.    | Outdoor                  PSU                                         |  **[*]**Units                                      | US$**[*]**.-                      |
|   | (Grand                  Total before volume discount : US$**[*]**.-) |

----

| (2) | ACL                gives YZN a volume discount from the above Grand Total. After this                discount, The                Total Contract Price of This Contract is U.S.$26,025,446.-. The discount                amount                shall be calculated and applied on pro-rata basis against each                ACL’s |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2. | As                the result of the above 1. amendment, the additional Down Payment                of                U.S.$3,307,633.- shall be paid by YZN to ACL within two weeks of                This                Amendment in addition to the Down Payment already paid according                to                Article 6.-Clause 1. of 2nd                P/C. Now, this is calculated as follows                : |
|----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| The                total Contract Price of 2nd                P/C | U.S.$15,000,000.- |
|-------------------------------------------------------------------|-------------------|
| The                Contract Price added by This Amendment         | U.S.$11,025,446.- |
| The                total Contract Price of the date               | U.S.$26,025,446.- |
| The                Down Payment Amount of the above               | U.S.$7,807,633.-  |
| Less                The Down Payment already paid                 | U.S.$4,500,000.-  |
| The                Down Payment to be paid by This Amendment      | U.S.$3,307,633.-  |

| 3.     | As                the result of the above 1. amendment, ACL shall additionally submit                a                bank                                                                                                                                        |
|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   | guarantee                of U.S.$1,102,544.- to YZN within two weeks of This Amendment                                                                                                                                                                            |
|   | according                to Article 11. of 2nd                P/C.                                                                                                                                                                                                |
| 4.     | The                Shipment of Products added by This AMENDMENT shall be made by                20th                May, 2006.                                                                                                                                    |
| 5.     | ACL                shall make its best efforts to review and improve Enclosure design                of SDR                for the cost reduction and, if affirmative, ACL will propose the                revised                Unit Price of Enclosure of SDR. |

| YOZAN INC.         |   | AIRSPAN                COMMUNICATIONS LTD.  |   |
|--------------------|--------|--------------------------------------------------|--------|
|               |   |                                             |   |
| (SIGNED)           |   | (SIGNED)                                         |   |
|               |   |                                             |   |
|               |   |                                             |   |
| By Sunao Takatori, |   | By Henrik Smith-petersen                         |   |
| President and CEO  |   | President, Asia Pacific                          |   |