Provider certification record

Callisphere LLC

Listed
Deficiency Report ↓︎Similarity Report ↓︎View on FCC RMD ↗︎
RMD number
RMD0029021
FRN
0037287075
OCN
889L

Identity

Legal business name
Callisphere LLC
Doing-business-as
 
Foreign Voice Service Provider
No
Business address
25 1st ave ste a, watertown SD 57201
Filing contact
William Woolridge
CEO · Central Office
w.woolridge@callisphere.com
(315) 869-9278
25 1st ave ste a watertown SD 57201
United States of America

Classification

Provider role(s)
  • Voice service provider
  • Intermediate provider
STIR/SHAKEN implementation
RoleImplementation
Voice service providerPartial
Intermediate providerPartial
OverallPartial
Exemption rules
Callisphere LLC has implemented STIR/SHAKEN authentication for outbound SIP-originated traffic using its own STIR/SHAKEN certificate/SPC credentials. Call authentication is performed through Sansay Express Proxy/NSS as a third-party authentication platform acting on Callisphere’s behalf. Callisphere controls caller ID authorization, customer vetting, DNO screening, traffic monitoring, and traceback response procedures. All signed calls are authenticated using Callisphere’s certificate and are subject to Callisphere’s robocall mitigation program.

Prior investigations / actions

Description
 

Robocall mitigation plan

PDF Robocall_Mitigation_Plan_Callisphere.pdfFiled 2025-07-18 · 2 KB

Declaration

By
William Woolridge
Date
2026-05-07No Recertification Date

Listing history

DateEventDetail / diff
2026-05-12NewInitial certification filed and added to database.