chan_lcr bad quality
Thomas Witt <[email protected]>
| Newsgroups | gmane.linux.isdn.i4l.user |
|---|---|
| Message-ID | <[email protected]> |
Hi, I am trying out asterisk-11.5 and chan_lcr on a raspberry pi. ISDN hardware is a Draytek MiniVigor 128 (HFC-S usb chip). Basically I got it to work using the “mvcstromer/asterisk-11.5” branch from lcr.git and in-kernel mISDN. I can now successfully relay incoming ISDN calls to a SIP softphone and route SIP calls to the outside world through the ISDN. While the voice transmission from ISDN to SIP is loud and clear, the other direction from SIP to ISDN is very noisy, has a low volume and is barely intelligible. CPU load during a call is about 20%, so that should be no issue. As I was unable to find any documentation on chan_lcr tweaking online, could someone help me with some information about chan_lcr and mISDN codec and level handling? Thomas _______________________________________________ isdn4linux mailing list [email protected] https://www.isdn4linux.de/mailman/listinfo/isdn4linux