10-03-2008 10:35 AM - edited 03-15-2019 01:43 PM
Hi,
I've an Cisco 1861 with B-ACD and the FXS ports are controlled via MGCP from a CCM 5.1(3a). The DN of the ports are 5570 to 5573.
DN 5570 has a CFNA to DN 5571, and DN 5571 has a CFNA to DN 5570.
The issue is that when a call is received on the B-ACD and it tries to pass the call to DN 5570. If it doesn't answer the call is forwarded to DN 5571, and if it doesn't answer the B-aCD drops the call and DN 5571 became unavailable. On the 1861, the status is this:
sh mgcp conn
Endpoint Call_ID(C) Conn_ID(I) (P)ort (M)ode (S)tate (CO)dec (E)vent[SIFL] (R)esult[EA] (ME)dia (COM)Addr:Port
1. aaln/S0/SU0/2 C=,1255,-1 I=0x0 P=0,0 M=0 S=9,0 CO=1 E=3,10,10,3 R=0,0 ME=0 COM=0.0.0.0:0
LEGEND:
Mode : 0=INVALID, 1=SENDONLY, 2=RECVONLY, 3=SENDRECV, 4=INACTIVE, 5=LOOPBACK,
6=CONTTEST, 7=DATA, 8=NETWLOOP, 9=NETWTEST, 10=CONFRNCE
State : 0=IDLE, 1=SETTING, 2=CONNECTING, 3=CONFERENCING, 4=ACTIVE, 5=CONF_DESTROYING,
6=DISCONNECTING, 7=INACTIVE, 8=VOICE_CONNECTING, 9=VOICE_ACTIVE, 10=CONF_DISSOCIATING,
11=CALLLEGS_DISSOCIATED, 12=HP_CONNECTING, 13=HP_CONNECTED, 14=HP_CONFERENCING,
15=HP_ACTIVE, 16=VOIP_CONF_DESTROY, 17=ERROR, 18=CONNECTING_INACTIVE,
19=CONF_DESTROYING_INACTIVE, 20=CONT_TEST, 21=SETUP_WAIT, 22=WAIT_NSE_SENT,
23=TWC_ACTIVE, 24=WAIT_STATE, 25=HANDOVER
So the state indicates a Voice active on the port. But there is no call on the DN. If you try to call the DN you get fast busy. I've tried shuting down and up the port and the dial-peer, but the problem persist.
The current workaround is to erase the mgcp configuration on the 1861, and then put it back again. But it's not a good solution.
I have some ATAs on the LAN, and when the same procedure apllies to that DN, the issue doesn't happens. Tha's because the ATA is SCCP controlled.
Any suggestion will be appreciated.
Andres Pasten
Adexus S.A.
10-12-2008 08:20 PM
Andres,
We need more information to answer your question. How is the call pushed to B-ACD? A sample call flow with configuration snippets will help.
Naren
10-13-2008 10:39 AM
Naren
1.- These are the dial-peers for B-ACD:
dial-peer voice 1 pots
service autoatt
incoming called-number .*
port 0/1/0
dial-peer voice 2 pots
service autoatt
incoming called-number .*
port 0/1/1
!
dial-peer voice 3 pots
service autoatt
incoming called-number .*
port 0/1/2
!
dial-peer voice 4 pots
service autoatt
incoming called-number .*
port 0/1/3
Any call that arrives from the FXO ports, is redirected to service autoatt
2.- These is the B-ACD config:
application
service autoatt app-b-acd-aa-2.1.2.2.tcl
paramspace english index 1
param menu-timeout 6
param second-greeting-time 10
paramspace english language en
param max-time-vm-retry 0
param max-time-call-retry 60
param voice-mail 99
param aa-pilot 330030
param max-extension-length 4
param number-of-hunt-grps 2
paramspace english location flash:
param dial-by-extension-option 1
param handoff-string autoatt
param welcome-prompt _bacd_welcome.au
param call-retry-timer 5
paramspace english prefix en
param service-name queue
!
service queue app-b-acd-2.1.2.2.tcl
param queue-len 1
param aa-hunt3 5572
param number-of-hunt-grps 2
param queue-manager-debugs 1
param aa-hunt2 5570
The operator is DN 5570 and FAX is DN 5572
3.- This is the dial-peer for MGCP FXS ports:
dial-peer voice 6520 voip
service session
destination-pattern 5...
voice-class codec 1
voice-class h323 1
session target ipv4:
dtmf-relay h245-alphanumeric
Any call directed to DN 5xxx is forwarded to CCM
4.- These are the MGCP dial-peers for FXS
dial-peer voice 9000 pots
service mgcpapp
port 0/0/0
!
dial-peer voice 9001 pots
service mgcpapp
port 0/0/1
!
dial-peer voice 9002 pots
service mgcpapp
port 0/0/2
!
dial-peer voice 9003 pots
service mgcpapp
port 0/0/3
The CCM has control of these ports and assign the DNs 557x
5.- This is the mgcp config for the GW:
ccm-manager switchback immediate
ccm-manager fallback-mgcp
ccm-manager mgcp
ccm-manager music-on-hold
ccm-manager config
!
mgcp
mgcp call-agent
mgcp dtmf-relay voip codec all mode out-of-band
mgcp rtp unreachable timeout 1000 action notify
mgcp modem passthrough voip mode nse
mgcp modem passthrough voip codec g711alaw
mgcp package-capability rtp-package
mgcp package-capability sst-package
mgcp package-capability pre-package
no mgcp package-capability res-package
no mgcp package-capability fxr-package
no mgcp timer receive-rtcp
mgcp sdp simple
mgcp fax t38 inhibit
no mgcp explicit hookstate
mgcp rtp payload-type g726r16 static
mgcp bind control source-interface
mgcp bind media source-interface
!
mgcp profile default
Please let me know if you need something else.
TIA,
Andres Pasten
Adexus S.A.
10-17-2008 12:06 AM
Andres,
B-ACD is designed and supported to work in CME or SRST modes. B-ACD is not supported with CUCM.
Sorry...
Naren
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