Cisco Bug: CSCum04967 - T38 Fax Relay : DSP Fails to suppress "ANSam" tone
Last Modified
Nov 27, 2020
Products (1)
- Cisco 2600 Series Multiservice Platforms
Known Affected Releases
32.1(1)DSP 32.1(2)DSP 32.1(3)DSP 32.1(4)DSP
Description (partial)
Symptom: DSP fails to detect and suppress the "ANSam" tone when "fax-relay ans-disable" command is configured. Fax failures are observed, 1. When both sending and receiving fax machines are SG3 capable and T38 switchover do not take place on gateway 2. When integrating with IP Fax servers which supports only T38 fax relay Conditions: Issue is observed with IOS release 15.2(4)M1 to 15.2(4)M5 and its corresponding DSPware release 31.1.1 to 32.1.5
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