Playing around with debug mgcp packet on gateway.
CallManager doesn't have any DNs matching the number. How come I don't see the
gateway asking the call-agent about the number via MGCP messages? How does the
gateway know it's unassigned without asking the call-agent?
I suspect a RQNT R:
I think you are trying to see messages which are backhauled to CUCM (q931).
Gateway doesn't care about numbers, dial plans and stuffs like that,
because it is all inside the q931 messages, which you can see with debug
ccm-manager backhaul packets.
So the gateway doesn't ask the call-agent about
Is there a debug command to view the Q931 backhaul messages?
About to Wireshark the Q931 backhaul..
From: Ovidiu Popa [mailto:ovi.p...@gmail.com]
Sent: Thursday, August 30, 2012 2:41 PM
To: Jason Aarons (AM)
Cc: ccie_voice@onlinestudylist.com
Subject: Re: [OSL | CCIE_Voice] MGCP Calls to DN not
Got it!
Aug 30 18:43:51.075: ISDN Se0/0/0:23 Q931: RX - SETUP pd = 8 callref = 0x0097
Bearer Capability i = 0x8090A2
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
debug ccm-manager backhaul packets
But it is not so clear text as debug isdn q931...
Your output will be something like that:
cmbrl_send_pak: -- Sending backhauled msg for Se0/0/0:15 :
| bk_msg_type = DATA_IND
| bk_chan_id (slot:port) = 0:0
| Q.931 length = 62
|
Oh, by the way...
You can extract the dialed number in the Q.931 setup message by erasing the
3 at the final.
So for example, this setup message is:
080200830504038090A31803A983811E028183280F5053544E2D53495445422D50484F4E6C0D118031393732353235323232327009813234303434303032
If you get the final
