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HA
Holger A. Jentzsch
9 Credentials
1 Issuer
JENTZSCH GESELLSCHAFT FUR INFORMATIONSSYSTEME MBH
May 20, 2025
Silver
Silver
May 20, 2025
Mitel Networks Corp
MiVoice Office 400
CERTIFICATE OF COMPLETION
This Certificate is awarded to:
Holger A. Jentzsch
For successfully completing:
MiVoice Office 400
Issued
December 2, 2024
Expires
December 2, 2026
Ce certificat est décerné / Das Zertifikat wird verliehen an
Pour avoir terminé avec succès / Für den erfolgreichen Abschluss von
Tarun Loomba Chief Executive Officer
MiVoice Office 400
MiVoice Office 400
MiVoice Office 400
MiVoice Office 400
MiVoice Office 400
December 2, 2024
Mitel Networks Corp
Technical Excellence
Technical Excellence
August 1, 2024
Mitel Networks Corp
warning
Expired
Expired credential.
Customer Champion
Customer Champion
July 3, 2024
Mitel Networks Corp
warning
Expired
Expired credential.
JENTZSCH GESELLSCHAFT FUER
May 31, 2024
Silver
Silver
May 31, 2024
Mitel Networks Corp
warning
Expired
Expired credential.
Customer Champion
Customer Champion
November 3, 2023
Mitel Networks Corp
warning
Expired
Expired credential.
JENTZSCH GESELLSCHAFT FÜR
April 30, 2024
Silver
Silver
May 1, 2023
Mitel Networks Corp
warning
Expired
Expired credential.
MiVoice Office 400
CERTIFICATE OF COMPLETION
This Certificate is awarded to:
Holger A. Jentzsch
For successfully completing:
MiVoice Office 400
Issued
March 6, 2023
Expires
March 6, 2025
Ce certificat est décerné / Das Zertifikat wird verliehen an
Pour avoir terminé avec succès / Für den erfolgreichen Abschluss von
Tarun Loomba Chief Executive Officer
MiVoice Office 400
MiVoice Office 400
MiVoice Office 400
MiVoice Office 400
MiVoice Office 400
March 6, 2023
Mitel Networks Corp
warning
Expired
Expired credential.
CERTIFICATE OF COMPLETION
MiVoice Office 400
This certificate is awarded to:
Ce certificat est décerné / Das Zertifikat wird verliehen an
Holger A. Jentzsch
For successfully completing:
Pour avoir terminé avec succès / Für den erfolgreichen Abschluss von
MiVoice Office 400
Tarun Loomba Chief Executive Officer
Issued
Expires
February 9, 2023
February 9, 2025
MiVoice Office 400
MiVoice Office 400
MiVoice Office 400
February 9, 2023
Mitel Networks Corp
warning
Expired
Expired credential.
