Cisco Bug: CSCur74257 - RFC4733 packets have shorter duration than the detected duration.
Sep 14, 2019
- Cisco VG Series Gateways
Known Affected Releases
Symptom: Analogue phone is sending 86ms (o.k. to ETSI standard of 65ms) DTMF tone. Generated RFC4733 packets are only 50ms. receiving side is ignoring these packets, since 50ms too short against RFC. Conditions: Cisco VG224 with 151-4.M7 and a analogue phone sending DTMF with 86ms. If DTFM incoming duration is 100ms or longer, issue does not appear.
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