Comrex will be closed on Monday, October 10th for a federal holiday. Please note tech support will not be available. We encourage customers to contact us ASAP for assistance. We will reopen on Tuesday, Oct. 11th at 9AM Eastern Time (US).


Contact information, product manuals, firmware updates and more.


Business Hours: M – F, 9 am – 5 pm EST 

Tel: 1-800-237-1776 (North America)

Tel: 1-978-784-1776 (International)

Tech Support:

Apoyo Tecnico en español:

Codec Test Lines

POTS: 1-978-784-1700

ISDN: 1-978-772-9404

Lab Voice:

Lab Music:

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