Hi, I've noticed that sometimes instead of getting a regular ring tone when calling out on a Zap channel, I get this obnoxious loud noise which forces me to hang up. Is this a problem in the Zaptel driver? I seem to recall that ringback tones are generated by zaptel when dialing out from a SIP phone over a Zap trunk. Thanks.
In my experience, the ringback you get over a zap channel (be it analogue or digital) is generated by the remote end, /not/ Zaptel. The ringback you get over a SIP or IAX2 channel is often generated by either Asterisk or the SIP/IAX2 device you're calling from. James Lamanna wrote:> Hi, > I've noticed that sometimes instead of getting a regular ring tone > when calling out on a Zap channel, I get this obnoxious loud noise > which forces me to hang up. > Is this a problem in the Zaptel driver? I seem to recall that ringback > tones are generated by zaptel when dialing out from a SIP phone over a > Zap trunk. > > Thanks. > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > > !DSPAM:484975fe67791857117240! > > >
Hmm ok. This was a call from a SIP phone registered with Asterisk outbound on a Zap trunk. So would Asterisk or the phone be generating the ringback tone in that case? It also happens very intermittently (maybe 1 in 10 calls at most...) -- James Rob Hillis wrote:> In my experience, the ringback you get over a zap channel (be it > analogue or digital) is generated by the remote end, /not/ Zaptel. > > The ringback you get over a SIP or IAX2 channel is often generated by > either Asterisk or the SIP/IAX2 device you're calling from. > > > James Lamanna wrote: >> Hi, >> I've noticed that sometimes instead of getting a regular ring tone >> when calling out on a Zap channel, I get this obnoxious loud noise >> which forces me to hang up. >> Is this a problem in the Zaptel driver? I seem to recall that ringback >> tones are generated by zaptel when dialing out from a SIP phone over a >> Zap trunk.