Hi, I have a Cisco IAD 2431 which has MGCP protocol; I cannot make it to work againts Asterisk; at least there is some MGCP conversation between them but when I offhook a phone attached to IAD I get no tone at all. As anybody managed to get working Asterisk against an MGCP Cisco gateway ? Which MGCP version should I use ? TIA Attached are the configs: Cisco ------ ! version 12.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname 192.168.65.200 ! logging queue-limit 100 enable secret enable password ! ip subnet-zero ! ! no ip domain lookup ! isdn switch-type primary-net5 ! ! voice call carrier capacity active ! voice service pots ! voice service voip ! voice class codec 10 codec preference 1 gsmfr codec preference 2 g711alaw ! ! ! ! ! ! ! no voice hpi capture buffer no voice hpi capture destination ! ! mta receive maximum-recipients 0 ! ! controller T1 1/0 shutdown framing esf linecode b8zs ! ! ! interface FastEthernet0/0 ip address 192.168.65.200 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! ip http server ip classless ip route 0.0.0.0 0.0.0.0 192.168.65.1 ! ! ! dialer-list 1 protocol ip permit ! ! call rsvp-sync ! voice-port 2/0 no vad timing hookflash-in 750 ! voice-port 2/1 no vad timing hookflash-in 750 ! voice-port 2/2 no vad timing hookflash-in 750 ! voice-port 2/3 no vad timing hookflash-in 750 ! voice-port 2/4 ! voice-port 2/5 ! voice-port 2/6 ! voice-port 2/7 ! voice-port 2/8 ! voice-port 2/9 ! voice-port 2/10 ! voice-port 2/11 ! voice-port 2/12 ! voice-port 2/13 ! voice-port 2/14 ! voice-port 2/15 ! mgcp mgcp call-agent 192.168.65.100 service-type mgcp version 1.0 mgcp package-capability rtp-package mgcp default-package dtmf-package no mgcp timer receive-rtcp no mgcp validate domain-name mgcp bind control source-interface FastEthernet0/0 ! mgcp profile default ! dial-peer cor custom ! ! ! dial-peer voice 2 pots application mgcpapp port 2/1 ! dial-peer voice 3 pots application mgcpapp port 2/2 ! dial-peer voice 4 pots application mgcpapp port 2/3 ! dial-peer voice 1 pots application mgcpapp port 2/0 ! ! line con 0 line aux 0 line vty 0 4 password login ! end mgcp.conf ---------- ; ; MGCP Configuration for Asterisk ; [general] port = 2727 bindaddr = 0.0.0.0 [192.168.65.200] host = 192.168.65.200 context = local line = aaln/S2/0 line = aaln/S2/1 line = aaln/S2/2 line = aaln/S2/3 -- Juanjo sin .sig