Hello, I'm having problem with a T1 line from telco. Is not PRI. I configured the T1 as ami,d4. zaptel.conf span=1,0,0,d4,ami e&m=1-24 zapata-channels.conf o zapata.conf signalling = em_w channel=>1-24 I can receive calls and DID. Works OK. I can make calls but nobody can hear me on other side. I can hear good. I test from SIP softphone and from Grandstream and Linksys phones. The same. When I connect and IAX extension via Zoiper the audio works OK both way when I call. I'm using ulaw. I tested on different T1 line from same telco and works OK both way. The telco tell me everything is OK but I know that there's something wrong about because nobody can hear me when I make a call. Any help about? Thanks in advance.