Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
New Member

ISDN CALLS NOT CONNECTING

I'm trying to troubleshoot a cisco platform for voice calls, using an

ISDN PRI.

This should be a 10 digit local call. It does not complete if I

dial 1+ 10digits. (Seen at bottom)

I am a newbie in Cisco Voice products.

Here is my debug output.

layer3#

*Mar 24 03:16:06.092: ISDN Se1/1:23 EVENT: process_pri_call: call id 0x8007, num

ber 15672520826, Guid 503A29A38008, speed 0, call type VOICE, redial No, CSM cal

l No, pdata Yes

*Mar 24 03:16:06.092: ISDN Se1/1:23 Q931: Applying typeplan for sw-type 0x3 is 0

x2 0x1, Calling num 4047881723

*Mar 24 03:16:06.100: ISDN Se1/1:23 Q931: Applying typeplan for sw-type 0x3 is 0

x2 0x1, Called num 15672520826

*Mar 24 03:16:06.100: ISDN Se1/1:23 Q931: TX -> SETUP p

Bearer Capability i = 0x8090A2

Standard = CCITT

Transfer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98381

Exclusive, Channel 1

Calling Party Number i = 0x2180, '4047881723'

Plan:ISDN, Type:National

Called Party Number i = 0xA1, '15672520826'

Plan:ISDN, Type:National

Locking Shift to Codeset 6

Codeset 6 IE 0x28

*Mar 24 03:16:06.280: ISDN Se1/1:23 Q931: RX <- SETUP_ACK pd = 8 callref = 0x80

86

Channel ID i = 0xA98381

Exclusive, Channel 1

*Mar 24 03:16:06.284: ISDN Se1/1:23 EVENT: process_rxstate: ces/callid 1/0x8007

calltype 2 CALL_SETUP_ACK

*Mar 24 03:16:06.340: ISDN Se1/1:23 Q931: RX <- DISCONNECT pd = 8 callref = 0x8

086

Cause i = 0x8090 - Normal call clearing

*Mar 24 03:16:06.348: ISDN Se1/1:23 EVENT: process_rxstate: ces/callid 1/0x8007

calltype 2 CALL_DISC

*Mar 24 03:16:06.352: ISDN Se1/1:23 Q931: TX -> RELEASE pd = 8 callref = 0x0086

*Mar 24 03:16:06.404: ISDN Se1/1:23 Q931: RX <- RELEASE_COMP pd = 8 callref = 0

x8086

*Mar 24 03:16:06.412: ISDN Se1/1:23 EVENT: process_rxstate: ces/callid 1/0x8007

calltype 2 CALL_CLEARED

Thanks,

Knmezi.

4 REPLIES
VIP Purple

Re: ISDN CALLS NOT CONNECTING

Hello Knmezi,

happy new year to you.

The output of your debug shows ´normal call clearing´, which does not really reveal a lot. Can you post the configuration of your router, as well as the output of ´show version´ ?

Regards,

GP

New Member

Re: ISDN CALLS NOT CONNECTING

The following is the cofig my t1's are connect a PBX for calling cards then run thru IP: Ineed your help:

Building configuration...

Current configuration : 3276 bytes

version 12.4

hostname 3640

!

enable secret 5

enable password

!

clock timezone GMT 5

voice-card 1

!

ip subnet-zero

ip tcp path-mtu-discovery

!

ip cef

ip name-server 64.105.202.138

!

isdn switch-type primary-5ess

isdn voice-call-failure 0

!

voice service voip

signaling forward unconditional

cause-code legacy

sip

ds0-num

no call service stop

!

voice class codec 1

codec preference 1 g711ulaw

codec preference 2 g729r8

codec preference 3 g723r63

!

controller T1 1/0

framing esf

clock source internal

linecode b8zs

cablelength short 133

pri-group timeslots 1-24

!

controller T1 1/1

framing esf

linecode b8zs

cablelength short 133

pri-group timeslots 1-24

!

interface FastEthernet0/0

ip address 72.214.194.141 255.255.255.248

speed auto

half-duplex

!

interface Serial1/0:23

no ip address

isdn switch-type primary-5ess

isdn protocol-emulate network

isdn incoming-voice voice

isdn supp-service name calling

!

interface Serial1/1:23

no ip address

isdn switch-type primary-5ess

isdn protocol-emulate network

isdn incoming-voice voice

isdn supp-service name calling

!

interface Ethernet2/0

no ip address

shutdown

half-duplex

!

interface Ethernet2/1

no ip address

shutdown

half-duplex

!

ip default-gateway 72.214.194.137

ip http server

ip classless

ip route 0.0.0.0 0.0.0.0 72.214.194.137

ip route 0.0.0.0 0.0.0.0 FastEthernet0/0

ip route 72.214.194.136 255.255.255.248 72.214.194.137

!

ip rtcp report interval 100

!

access-list 100 permit tcp any any eq telnet

access-list 101 permit ip any any

access-list 102 permit udp any any range 16384 32767

access-list 103 permit tcp any eq 1720 any

access-list 103 permit tcp any any eq 1720

snmp-server community RO

!

control-plane

!

call filter match-list 1 voice

!

voice-port 1/0:23

!

voice-port 1/1:23

!

dial-peer voice 1 pots

service session

destination-pattern .T

direct-inward-dial

port 1/0:23

!

dial-peer voice 2 voip

service session

destination-pattern .T

session protocol sipv2

session target ipv4:216.143.130.94

session transport tcp

dtmf-relay rtp-nte

codec g711ulaw

!

dial-peer voice 4 pots

service session

destination-pattern .T

direct-inward-dial

port 1/1:23

!

dial-peer voice 5 voip

service session

destination-pattern .T

session protocol sipv2

session target ipv4:216.143.130.92

session transport tcp

dtmf-relay rtp-nte

codec g711ulaw

!

dial-peer voice 6 voip

service session

destination-pattern .T

session protocol sipv2

session target dns:sip-server

session transport tcp

dtmf-relay rtp-nte

codec g711ulaw

!

dial-peer voice 7 voip

service session

session protocol sipv2

session target ipv4:66.98.180.77

session transport tcp

dtmf-relay rtp-nte

codec g711ulaw

!

gateway

timer receive-rtcp 10

timer receive-rtp 500

!

sip-ua

nat symmetric role active

nat symmetric check-media-src

retry register 10

sip-server dns:sip-server

!

line con 0

line aux 0

line vty 0 4

password

login

!

end

Re: ISDN CALLS NOT CONNECTING

Hi,

this looks quite normal. Your router sends the telephone number '15672520826' to the telco switch. It gets it (RX <- SETUP_ACK) and then disconnects (RX <- DISCONNECT) with cause code "Cause i = 0x8090 - Normal call clearing".

So the real question is, why does your telco disconnect you, when you hand off the telephone number above? Is the telephone number dialed existing or what is the 11th digit doing? I am no specialist in numbering plans, but could it be that the leading "1" causes this? What is the telephone number format the telco expects?

Hope this helps

Martin

Green

Re: ISDN CALLS NOT CONNECTING

Verify that your ISDN is provisioned for voice.

If you have your provisioning sheet, it should refrence the "B" channels as CSV or CSVD (Circuit Switched Voice or Circuit Switched Voice / Data).

If you don't have / don't have access to your provsioning sheets, call your provider.

Good Luck

Scott

150
Views
4
Helpful
4
Replies
CreatePlease to create content