I have a network
PSTN1-Ericsson BP-250--Cisco 2620--VoIP--CISCO3661-MD-110
The calls from internal BP-250 numbers to internal numbers of MD-110 go very well.
There is a need to do call forwarding from one external BP250 number to internal MD-110 number. It is configured on BP to forward the call to internal number through IP network. When the call is coming to external number on BP-250 it seems that call is forwarded, the internal number on MD-110 rings, but when you pick up the handset- nothing is heared. On the other end ring are not stoping and continue like there where no answer. I found that this problem remains even if I configure C2620 to anser the call. I think this is problem between BP-250 and CISCO2620, but I don't now what's the reason