Hi Karan, Thanks for this doc. Actually, I have a duplicated dtmf issue in a Genesys IVR , using CUCM 8.6; this is connected via SIP Trunk to a Genesys IVR; the issue is only for calls from PSTN , by a MGCP GW. When the call is from a ip phone, there are not issue... The scenario is: PSTN --> MGCP GW --> CUCM 8.6 --------SIP----> Genesys IVR The GW is using 15.1.4M4, configured with dtmf relay NSE,but I also see MGCP NTFY from GW when I capture traffic. I not find the CSCta69407 in this IOS ..but if I use the workarond (dtmf-relay out-of-band) the issue not exist... I need to use dtmf-realy nse...then I ´d must upgrade de GW IOS to fix the bug/issue, only configring dtmf-relay nse? Thanks in advance!!!! Iván.
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