It doesn't look like your call ever gets setup in this trace, if you enable the sip trace you might see a bit more, but it looks like we are receiving a 480 response from the called phone.
Mike On Nov 15, 2009, at 12:42 PM, vedama...@netscape.net wrote: > > I am FS beginner and I have a basic PBX setup using FS with the Siemens A580 > IP Phones. I thought everything was working fine since I could make and > receive basic calls without any obvious issues. However, recently I wanted > to use more advanced functions in FS and discovered that I could not use any > of DTMF based functions (e.g. call transfer/record) during calls with the > Siemens IP phones. The same functions work fine when I use a softphone. So, > I started looking at the log file and I think there is some problem between > the Siemens IP phones and FS (log file attached below). It seems that when a > call comes in, FS calls the extensions and then the extensions send back > confirmation and SIP status codes. With softphone extensions, I see 180 > (Ringing) and 200 (OK) as normal status. However, with Siemens IP phone > extensions, I see 480 (Temporarily Unavailable) which seems to cause FS to > terminate the session. So, FS log shows there is actually no active session > which explains why it does not performs DTMF detection for the call session. > However, the call to Siemens IP phones actually continues with ringing when > an extension handset answers the call is established with the caller with > full voice communication. I don't know how FS works but this seems very > strange. I would like to know how to get FS to work properly with Siemens IP > phones including the DTMF functions during calls. Any help would be > appreciated. >
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