Dennis, I've been playing with fs/callweaver for a couple weeks. I have fs routing calls and passing them to callweaver. In proxy_media mode it works perfectly in bypass_media mode it works only sometimes. Are you doing an 'answer' on FS before you bridge the call? Are you sure that the call is being put in proxy_media mode? Do you have canreinvite=yes on callweaver set? I also had to put the following in my extensions.conf: exten => s,n,Set(SIP_CODEC=ulaw) exten => s,n,SipT38SwitchOver() Those are some of the things I played with to get it working. Let me know how you make out. Fax over IP is an odyssey.

hi,

we are doing a lot with freeswitch and everything works absolutely perfect.

the only thing we are missing, is a good support for fax over ip - may it be for offering a fax-2-mail service or just passing incoming fax-calls from our fs-servers to a "real" fax-machine.

now we have another server only for callweaver, which has a great fax-support. if we send faxes from our fax-machine over our sip-provider (who supports t.38) directly to the cw-server, all faxes are beeing received and saved by cw. but if we send faxes over the same sip-provider first to fs and then do a bridge to the cw-server, all faxes fail.

we set <param name="inbound-late-negotiation" value="true"/> in internal.xml and play with bypass_media=true and/or proxy_media=true in the dialplan. it simply does not work.

i think and hope that there are some other settings i can change, so that fs is nothing more than just a "tunnel" and let both sides communicate with eachother?

does someone know callweaver and can tell me, if there are some important settings to be set for making it work with fs in the middle?

thanks & kind regards dennis

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