HI Michel, so after other side puts you on hold our side gets reinvite with ip in sdp 0.0.0.0 which is ok. After other side pickup a call from trasfer there should be another reinvite with ip in sdp for media if I am right? I guess this is how it shoud work. Do you maybe know if this is also defined in RFC as I unable to find this thing, because this voip proved is saying that also right is after call is pickuped from on hold thay can send invite whithout SDP. tnx! miha Dne 6/19/2013 4:32 PM, pis(e Michel Brabants:
This is normal behaviour for Freeswitch as it is a b2b. A phone will also interpret the sdp as being put on-hold. Like I said, normally, they should be sending a reinvite with a non-0.0.0.0-sdp-ip so that the phone/freeswitch knows where to send the rtp to.
You can also use another option for hold_music in freeswitch. I think it is hold_music=hold (I'm using this) where it will not send music on hold, but will pass the holdsignalling to the phone. However, this won't change your case normally, as there should still be a reinvite with ip afterwards as far as I can tell (didn't look at trace yet).
Michel
On Wed, Jun 19, 2013 at 2:53 PM, Miha <miha@softnet.si <mailto:miha@softnet.si>> wrote:
HI,
I can see where is a problem. After 2-trasfer is made other side sends in sdp 0.0.0.0. which is ok, but when call is picked up we get only invite, without SDP, so I guess FS sends media to 0.0.0.0.
Is this normal behaviour for musing on hold? this proved is saying that thay have problems only with as.
p.s.: they are using netcentrex-pbx.
thanks! MIha
Dne 6/19/2013 11:28 AM, pis(e Miha:
Hi Michel,
I was just replaying to your email as I saw you email:) So, yes unhold-reinvite is a problem.
Here is a trace of a call:
http://pastebin.freeswitch.org/21075
Thanks for help! miha
Dne 6/19/2013 10:58 AM, pis(e Michel Brabants:
After rereading the issue, it seems similar to the freeswitch-"issue", but I would say it is a bug in the netcentrex-pbx. I suppose netcentrex stays in the signalling path (like a b2b) in this case as they're sending a reinvite. Without a siptrace, I would say that they should also sent the unhold-reinvite.
Michel
On Wed, Jun 19, 2013 at 10:39 AM, Miha <miha@softnet.si <mailto:miha@softnet.si>> wrote:
HI,
I am having one issue with music on hold.
A calls B (B is at different voip provider that is using netcentrex softswitch), after B do xfer it puts A on hold and send reinvite with 0.0.0.0 in sdp, when C try to pickup this call, just different music on hold appears but there is no media from C.
how to deal with this issue?
tnx!
miha
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