[Help] 503 EndedByNormalClearing-16

Asterisk Asterisk Support
1

Hello,

I have Asterisk setup with SIP external trunk. I am facing issue while making calls.

  1. When I make calls I am not able to hear any ring…(but ethereal show 180 Ringing) and other side phone rings.
  2. Other side if answer the call it automatically gets disconnected…(503 EndedByNormalClearing-16)

my sip.conf

[general]

port = 5060
bindaddr = 0.0.0.0
disallow=all
allow=ulaw
allow=alaw
allow=g729
nat=yes
externip=XXX.XXX.XXX.XXX
localnet=192.168.14.0/255.255.255.0

[provider-out]
type=friend
host=xx.xx.xx.xx

Tried configuring IAX with VoIPJet it works fine.

Warm Regards,
Leo

2

I tried adding canreinvite=no still no luck.

But now whenever I am making call its not getting disconnected. but still no audio at all, not even ringing on caller phone. I will summerize the point as…
A (Caller) is inside NAT * server is also inside NAT
B (Destination) is any PSTN number.

  1. A calls B -> B shows incoming call with CID and start ringing. But for A it shows trying…no ring or any audio.
  2. if B answers the call, still it shows trying for A and after sometime * server says “all channels are busy now”.
  3. if B dont answer still it shows trying on A and after sometime * server says “all channels are busy now”.

Regards,
Leo