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tdm400p
2003 Aug 04
4
SIP + Grandstream 100 + TDM100P = lots of local echo, & questions about call transfers
hi ..
I have an asterisk system with three TDM100P (single port FXO) cards
and 10 Grandstream 100 phones connected to it ..
1st question:
when i phone out
or receive a call from one of the SIP phones onto the PSTN, there is
a LOT of local echo in the handset .. the PSTN end of the call does not
here this echo, but it's VERY annoying on the SIP end of things ..
the echo seems to be about 0.3