Exhibit 4.1 FIRST SUPPLEMENTAL INDENTURE THIS FIRST SUPPLEMENTAL INDENTURE dated as of June 30, 1999 (theFirst Supplemental Indenture • July 14th, 1999 • Primus Telecommunications Group Inc • Telephone communications (no radiotelephone) • New York
EXECUTION ASSET AND STOCK PURCHASE AGREEMENT BY AND BETWEEN TELEGROUP, INC.Asset and Stock Purchase Agreement • July 14th, 1999 • Primus Telecommunications Group Inc • Telephone communications (no radiotelephone) • New York
Exhibit 4.3 THIS NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE OR OTHER SECURITIES LAWS. THIS NOTE IS BEING OFFERED AND SOLD IN RELIANCE ON EXEMPTIONS FROM THE REGISTRATION REQUIREMENTS...Asset and Stock Purchase Agreement • July 14th, 1999 • Primus Telecommunications Group Inc • Telephone communications (no radiotelephone) • New York
