Hi I'm new to the list, nice to meet you all... First of all.. sorry for my english :) I 'm having this strange problem... I' m using the latest trixbox, this is my configuration: PSTN <----E1----> Cisco AS5400 <---- SIP (nonat) ----> Trixbox Box I'm using idefisk for IAX2 and a Cisco IPPhone 7912 for SIP. Everything works fine when I call from any phone (SIP, IAX2) to any phone or when I call from any phone (SIP, IAX2) to the PSTN. Now, when I call from the PSTN to any extension, the phone rings, but when I answer I can't hear anything... The odd thing is that I configured a catch all inbound route to an IVR who has the same extensions configured as options 1 and 2... When I call the main E1 number (we call it "cabecera" but I don't know how is called in english) the IVR answer, still can't hear anything, but when I press "1" or "2" it transfer me to the extension and then I CAN hear the voice. I have "yes" in "Allow Anonymous Inbound Calls" in "General Settings" on FreePBX. Any help will be really appreciate. Thanks in advance. This is are my configuration files: ---sip.conf--- [general] port = 5060 bindaddr = 10.10.10.9 externip=10.10.10.9 localnet=10.10.10.0/255.255.255.0 disallow=all allow=ulaw allow=alaw context = from-sip-external callerid = Unknown tos=0x68 #include sip_nat.conf #include sip_custom.conf #include sip_additional.conf ---sip_additional.conf--- [16] username=16 type=friend secret=xxxxx record_out=Adhoc record_in=Adhoc qualify=no port=5060 nat=never mailbox=16@device host=dynamic dtmfmode=rfc2833 context=from-internal canreinvite=no callerid=Pablo <16> [as5400] username=xxxxx type=friend secret=xxxxx nat=never host=10.10.10.65 context=from-trunk [as5400-out] type=peer host=10.10.10.65 This is the AS5400 configuration: ! voice service voip fax protocol t38 ls-redundancy 0 hs-redundancy 0 fallback cisco sip bind control source-interface FastEthernet0/1 bind media source-interface FastEthernet0/1 ! ! controller E1 7/0 framing NO-CRC4 ds0-group 1 timeslots 1-15,17-31 type r2-digital r2-compelled ani cas-custom 1 country paraguay ! ! interface FastEthernet0/1 ip address 10.10.10.65 255.255.255.0 duplex auto speed auto ! voice-port 7/0:1 ! ! ! dial-peer voice 100 pots incoming called-number 0.. direct-inward-dial forward-digits extra ! dial-peer voice 200 voip destination-pattern 0.. session protocol sipv2 session target ipv4:10.10.10.9 session transport udp dtmf-relay sip-notify rtp-nte codec g711ulaw no vad ! dial-peer data 10 pots incoming called-number 5000 ! dial-peer voice 1000 pots service session destination-pattern .T port 7/0:1 forward-digits all ! ! sip-ua authentication username xxxxxx password xxxxxxxxx retry invite 1 retry response 3 retry bye 3 retry cancel 3 retry register 3 timers trying 1000 registrar ipv4:10.10.10.9 expires 3600 sip-server ipv4:10.10.10.9 ! ! -- Pablo Salvador Capo pscapo@paraway.net.py NOC - COPACO S.A. http://www.copaco.com.py/