| Virgo Publishing |  |
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P.O. Box 40079 Phoenix, AZ 85067-0079 USA  +1 (480) 990-1101  +1 (480) 990-0819  Web Site E-mail |
| Exhibition Name | Cycle | Next Date | City / Country |
| BILLING & OSS WORLD Conference and Exhibition on Operations Support Systems for Communications Service Providers | once a year | 24.04 - 25.04 2012 | Washington D.C. > USA |
| Please note ! All dates are subject to changes. Contact organizers for more information before making arrangements. | |||