30 nov 2009 kl. 15.56 skrev Anders: > Hi, > > This question may belong in a general SIP forum - but I'll drop it > here anyway, - hope I stir no big anger ;-) > > I'm running Kamailio 1.5, - use it for wholesale, and my customers > typically send me calls from their Asterisk platform. I'm experiencing > a very share of calls ending up in 487. This should be the client > terminating the call - but is it my client (the provider with the > Asterisk platform) or is it the final client - my client's client? > Could Asterisk send a 487 for some reason? > > I've researched this (maybe not good enough!), but cannot find the > answer: Does a 487 always mean that the client gave up and hung up? If > this is the case, could high PDD be my problem - it's taking too long > and the client gives up?
487 is sent as response to an INVITE after caller sending a CANCEL. This is sent by Asterisk and all other UA's. This only happens before the call is in UP state, so normally in ringing state or early media. Why - it could be a timeout when no one answers in a system somewhere or the caller simply giving up since no one answers the call. /O _______________________________________________ Kamailio (OpenSER) - Users mailing list [email protected] http://lists.kamailio.org/cgi-bin/mailman/listinfo/users http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
