problems to make calls with ATA H323 and a difficult topology

[david.sua]

Hi all, I have been testing for hours but I can't solve the problem.

I am trying to make a call from an ATA to the PSTN, the ATA is connected to a UC500 and the PSTN is connected to a Cisco 2800 Router.

This is the scenario

ATA ------- CME --------C1801 -----vpn------- C2811 with 4FXO ----- PSTN (941519151)

Well, when i make a call with an ephone registered into CME to number 941519151, the call works well but when i make the same call from a phone connected to the ATA the call doesn't work.

I have this configuration,

CME:

dial-peer voice 97 voip
description ATA

destination-pattern 151
session target ipv4:192.168.254.45
incoming called-number .
!
dial-peer voice 103 voip
destination-pattern 9........
session target ipv4:10.42.0.6
!
dial-peer voice 104 voip
destination-pattern 6........
session target ipv4:10.42.0.6
!
dial-peer voice 105 voip
destination-pattern 5...
session target ipv4:10.42.0.6
!
dial-peer voice 102 voip
destination-pattern 5...
session target ipv4:10.42.0.6
!

C2811

dial-peer voice 1120 pots
destination-pattern 9........
no digit-strip
port 0/1/0
prefix 0
!
dial-peer voice 1121 pots
preference 1
destination-pattern 9........
no digit-strip
port 0/1/1
prefix 0
!
dial-peer voice 1122 pots
preference 2
destination-pattern 9........
no digit-strip
port 0/1/2
prefix 0
!
dial-peer voice 1123 pots
preference 3
destination-pattern 9........
no digit-strip
port 0/1/3
prefix 0
!

I attach an debug voip dialpeer all from C2811, i don't know how to interpret this debug.

Somebody has any idea?

[Daniele Giordano]

Sounds like a loop. Your debug says:

Calling Number=151, Called Number=941519151

Is Incoming=TRUE

Incoming Dial-peer=97 Is Matched  --> voip call leg from ATA to CME - 97 is a CME dial-peer

List of Matched Outgoing Dial-peer(s):
     1: Dial-peer Tag=1120  ---> 1120 etc are 2811 dial-peers
     2: Dial-peer Tag=1121
     3: Dial-peer Tag=1122
     4: Dial-peer Tag=1123

after matching:

Calling Number=, Called Number=941519151

Is Incoming=FALSE

List of Matched Outgoing Dial-peer(s):
     1: Dial-peer Tag=1120
     2: Dial-peer Tag=1121
     3: Dial-peer Tag=1122
     4: Dial-peer Tag=1123

after matching:

Calling Number=941519151, Called Number=941519151  <--- loop ?

Is Incoming=FALSE

List of Matched Outgoing Dial-peer(s):
     1: Dial-peer Tag=1120
     2: Dial-peer Tag=1121
     3: Dial-peer Tag=1122
     4: Dial-peer Tag=1123

after matching:

Calling Number=941519151, Called Number=,

Is Incoming=TRUE

Result=Success(0); Incoming Dial-peer=1120 Is Matched
Result=Success(0); Incoming Dial-peer=1121 Is Matched
Result=Success(0); Incoming Dial-peer=1122 Is Matched
Result=Success(0); Incoming Dial-peer=1123 Is Matched

  List of Matched Outgoing Dial-peer(s):
     1: Dial-peer Tag=1120
     2: Dial-peer Tag=1121
     3: Dial-peer Tag=1122
     4: Dial-peer Tag=1123

after matching:

Calling Number=, Called Number=151

Calling Number=941519151, Called Number=,

Is Incoming=FALSE

List of Matched Outgoing Dial-peer(s):
     1: Dial-peer Tag=97
     2: Dial-peer Tag=111

after matching:

Calling Number=, Called Number=94151915

Is Incoming=FALSE

List of Matched Outgoing Dial-peer(s):
     1: Dial-peer Tag=1120
     2: Dial-peer Tag=1121
     3: Dial-peer Tag=1122
     4: Dial-peer Tag=1123

after matching:

Calling Number=, Called Number=151,

Is Incoming=FALSE

List of Matched Outgoing Dial-peer(s):
     1: Dial-peer Tag=97
     2: Dial-peer Tag=111

after matching:

Calling Number=, Called Number=941519151

Is Incoming=FALSE

List of Matched Outgoing Dial-peer(s):
     1: Dial-peer Tag=1120
     2: Dial-peer Tag=1121
     3: Dial-peer Tag=1122
     4: Dial-peer Tag=1123

after matching:

Calling Number=151, Called Number=

etc. etc.

Calling Number=9........, Called Number=

Result=NO_MATCH(-1) After All Match Rules Attempt

What router produces the debug output? CME or 2811 or both?
I've a doubt.
In debug you can see that the call matches dial-peer 97 and dial-peer 1120 (top of debug).
But in your config the dial-peer 97 is configured on the CME, while the dial-peer 1120 is configured on 2811.

[david.sua]

this debug is from C2811, and i have a dialpeer 97 in both routers

this is the dialpeer 97 in C2811

dial-peer voice 97 voip
description pruebasdavid
destination-pattern 151
session target ipv4:192.168.254.45
incoming called-number .

thank you for your attention

[Daniele Giordano]

Can you capture the output of the command "show voice call status" during call attemp?

Thanks.

[david.sua]

This is the output of "show voice call status" from C2811

0xAC       171F 0x480C102C 0/1/0            0/1:2  *941519151  None           97/1120

and, if i delete dialpeer 97 from C2811 this is the output

CallID     CID  ccVdb      Port        Slot/DSP:Ch  Called #   Codec    MLPP Dial-peers
0xBC       2637 0x480C102C 0/1/0            0/1:1  *941519151  None           111/1120

where dialpeer 111 is

dial-peer voice 111 voip
destination-pattern 1..
session target ipv4:10.40.0.6 <---- That is the IP of CME
!

[Daniele Giordano]

Can you capture the same debug and the same output of the show command during a call starting from an IPPHONE?

I would compare results.

[david.sua]

the problem was in the codec.