[asterisk-dev] DTMF_HITS_TO_BEGIN and DTMF_MISSES_TO_END

[Raj [mail list]]

Hi,

I am trying to figure out caller ID decoding in asterisk. Looking
through the code I find that in main/dsp.c two #defines
DTMF_HITS_TO_BEGIN and DTMF_MISSES_TO_END are defined with value 4.

Just curious as to why the value 4 was selected? Does it has any
relation with the length of DTMF tone coming from exchange?

thanks and regards,

raj