Help – DTMF Relay In Meetme Is Not Reliable

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Hello List,

I am facing some issue while passing DTMF (RFC2833 set globally in sip.conf) in meetme (asterisk 1.8). The issue I have observed that – if two users tries to pass DTMF simultaneously at the same time from their phones only one DTMF is detected in asterisk and broadcasted to other users. Other DTMF lost somewhere. We have tested only with sip phones.

Can someone help me with this, or is there any configuration option that can resolve this problem? I want asterisk receive the DTMFs send at the same time and to pass those either by queuing them or by some other means. We can not use confbridge at this moment as we have developed the application on meetme. Please help!