Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001104659-21-048713
Filing Date
2021-04-09
Accepted
2021-04-09 16:16:00
Documents
3

Document Format Files

Seq Description Document Type Size
1 DEFA14A tm212651d4_defa14a.htm DEFA14A 15443
2 GRAPHIC tm212651d4_defa14aimg001.jpg GRAPHIC 426448
3 GRAPHIC tm212651d4_defa14aimg002.jpg GRAPHIC 126952
  Complete submission text file 0001104659-21-048713.txt   779058
Mailing Address 6500 CHASE OAKS BOULEVARD PLANO TX 75023
Business Address 6500 CHASE OAKS BOULEVARD PLANO TX 75023 877-412-8867
Ribbon Communications Inc. (Filer) CIK: 0001708055 (see all company filings)

EIN.: 821669692 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-38267 | Film No.: 21818027
SIC: 7373 Services-Computer Integrated Systems Design