Please check in another GW B

J_Vansen_S · ‎02-24-2016

hi All

Problem Statement

When calls enters to the opposite gateway, incoming calls could not get thru. Unallocated/unassigned number

E1 h323, cucm setup

Both h323 voice gateway has identical config
Site A phones registers to Site A CUCM02
Site B phones registers to Site B CUCM01
Telco forwards DID number to both E1 line randomly
Incoming CSS on gateway is correct with the appropriate partition

When calls to 9997851 enters to Site A E1 there is no issue

When calls to 9997851 enters to Site B E1 I get Unallocated/unassigned number.

It seems like the call meant for Site A, that comes thru Site B E1 does not know how to redirect to SiteA CUCM

HA CONFIG

SiteA

dial-peer voice 4001 voip
description to CUCM02
destination-pattern 7...
session target ipv4:10.200.10.10

!

dial-peer voice 4000 voip
description to CUCM01
destination-pattern 7...
session target ipv4:10.201.10.10
voice-class h323 1

Site B

dial-peer voice 4001 voip

description to CUCM02
destination-pattern 7...
session target ipv4:10.200.10.10
!
dial-peer voice 4000 voip

description to CUCM01
destination-pattern 7...
session target ipv4:10.201.10.10
voice-class h323 1

Is there any config that needs to be configure on the h323 to solve this problem?

Deepak Rawat · ‎02-24-2016

Are these the only dial-peers you have configured there, you should have something created for the inbound POTS leg as well coming from the PSTN to then match it against the outbound voip dial-peers that you have created to send it further to CM. Besides this, make sure the Gateway had appropriate CSS configured for the Incoming Calls to reach the APT_Internal_Voice and PLZ_Internal_Voice partitions respectively.

Regards

Deepak

J_Vansen_S · ‎02-24-2016

Hi there,

I have the dial-peer POTS configured for my outbound calls.

Apparently outgoing calls are all working fine. Its just incoming calls

Site A

ip cef
no ipv6 cef
multilink bundle-name authenticated
!
isdn switch-type primary-net5
!
cts logging verbose
!
!
voice service voip
allow-connections h323 to h323
allow-connections h323 to sip
allow-connections sip to h323
fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none
h323
!
voice class h323 1
h225 timeout tcp establish 3
!
voice translation-rule 1
rule 1 /9997/ /7/
!
!
voice translation-profile ABC
translate called 1
!
redundancy
!
!
controller E1 0/0/0
pri-group timeslots 1-31
!
!
interface Embedded-Service-Engine0/0
no ip address
shutdown
!
interface GigabitEthernet0/0
ip address 10.200.10.100 255.255.255.0
duplex auto
speed auto
h323-gateway voip interface
h323-gateway voip bind srcaddr 10.200.10.100
!
interface Serial0/0/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn incoming-voice voice
no cdp enable
!
!
voice-port 0/0/0:15
translation-profile incoming ABC
!
dial-peer voice 1 pots
destination-pattern 9.......
direct-inward-dial
port 0/0/0:15
forward-digits 7
!
dial-peer voice 4000 voip
description to CUCM01
destination-pattern 7...
session target ipv4:10.201.10.10
voice-class h323 1
!
dial-peer voice 2 pots
description Emergency/Gov
destination-pattern 91..
direct-inward-dial
port 0/0/0:15
forward-digits 3
!
dial-peer voice 3 pots
description Emergency
destination-pattern 99..
direct-inward-dial
port 0/0/0:15
forward-digits 3
!
dial-peer voice 4 pots
description International
destination-pattern 098T
direct-inward-dial
port 0/0/0:15
forward-digits all
!
dial-peer voice 6 pots
description InternationalDirect
destination-pattern 00T
direct-inward-dial
port 0/0/0:15
forward-digits all
!
dial-peer voice 7 pots
description TollFree
destination-pattern 1800T
direct-inward-dial
port 0/0/0:15
forward-digits all
!
dial-peer voice 4001 voip
description to CUCM02
preference 1
destination-pattern 7...
session target ipv4:10.200.10.10
!

Nadeem Ahmed · ‎02-24-2016

[+5] for Deepak

couple of things i would like to add alway do hop by hop troubleshooting(first Check Gateway and then CUCM) for this kind of scenario. most of scenario you have wrong CSS and PT or Telco sending incorrect digit pattern.

enable this debug on the GW and make a test , collect the debug post the same along CUCM trace if you can.

Debug isdn q931

debug voice ccapi inout

debug h225 asn1

debug h245 asn1

Br, Nadeem Please rate all useful post.

J_Vansen_S · ‎02-24-2016

hi there,

Thanks, will try to grab the debug logs

Ive added comments to my post.

When calls to 9997851 enters to Site A E1 there is no issue

When calls to 9997851 enters to Site B E1 I get Unallocated/unassigned number.

It seems like the call meant for Site A, that comes thru Site B E1 does not know how to redirect to SiteA CUCM

Nadeem Ahmed · ‎02-24-2016

Hello Vansen,

having said that grabbing quick debug/logs will reveal the root cause of this issue.Please do share debug once you collect the same.

once call accepted on the incoming leg of the SiteB gateway from Telco/provider you have full control to manipulating routing as per requirement. Telco job just need send/throw call to SITEB GW

One question when call suppose to go from Site:B do you hear Annoucment being played or just fast busy tone?

Br

Nadeem

Br, Nadeem Please rate all useful post.

J_Vansen_S · ‎02-25-2016

Hi all,

I managed to get this working by creating 2 inter-cluster trunk between my 2x CUCM(cluster), and creating 2 identical 7xxx route pattern and point each to the diff inter-cluster trunk.

At least i now do not hear the annoucement telling me that number is not assigned or the debug msg of Unallocated/Unassigned.

I can say that this is working. However i am faced with another issue.

I repeatedly tested calling the same number. 1 out of 5 times the calls does not get thru.

I get this below, whenever the incoming call does not get thru.

Feb 25 15:56:31.317: ISDN Se0/0/0:15 Q931: RX <- SETUP pd = 8 callref = 0x08D5

Sending Complete

Bearer Capability i = 0x8090A3

Standard = CCITT

Transfer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA1839A

Preferred, Channel 26

Calling Party Number i = 0x1183, '6737223737'

Plan:ISDN, Type:International

Called Party Number i = 0xC1, '9997848'

Plan:ISDN, Type:Subscriber(local)

Feb 25 15:56:31.317: ISDN Se0/0/0:15 Q931: Received SETUP callref = 0x88D5 callID = 0x0051 switch = primary-net5 interface = User

Feb 25 15:56:31.325: ISDN Se0/0/0:15 Q931: TX -> CALL_PROC pd = 8 callref = 0x88D5

Channel ID i = 0xA9839A

Exclusive, Channel 26

Feb 25 15:56:34.449: ISDN Se0/0/0:15 Q931: TX -> PROGRESS pd = 8 callref = 0x88D5