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Document and Entity Information (USD $)
 6 Months Ended
Jun. 30, 2012
Document And Entity Information  
Entity Registrant Name Zoom Telephonics, Inc.
Entity Central Index Key 0001467761
Document Type 10-Q
Document Period End Date Jun. 30, 2012
Amendment Flag false
Current Fiscal Year End Date --12-31
Is Entity a Well-known Seasoned Issuer? No
Is Entity a Voluntary Filer? No
Is Entity's Reporting Status Current? Yes
Entity Filer Category Smaller Reporting Company
Entity Public Float $ 69,737
Entity Common Stock, Shares Outstanding 6,973,704
Document Fiscal Period Focus Q2
Document Fiscal Year Focus 2012