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New Member

H.323 gatewat dropping calls inbound from PSTN

Hello,

We installed a 3640 and connected it to a PRI. It is our H.323 gateway to the PSTN. Outbound, we have no problems. Inbound, 50% of the times the calls do not go through. i have attached the config and the debug, any advice would be appreciated.

controller T1 0/0

framing esf

crc-threshold 320

linecode b8zs

interface Serial0/0:23

no ip address

no logging event link-status

isdn switch-type primary-5ess

isdn incoming-voice voice

no cdp enable

pri-group timeslots 1-24

dial-peer voice 1 pots

destination-pattern .T

direct-inward-dial

port 0/0:23

forward-digits all

!

dial-peer voice 3 pots

destination-pattern 0026

port 0/1:23

forward-digits all

!

dial-peer voice 20 voip

destination-pattern ....

session target ipv4:10.5.1.2

dtmf-relay h245-alphanumeric

codec g711ulaw

!

Debug when the call drops:

= 0x000A

Bearer Capability i = 0x8090A2

Standard = CCITT

Transer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98397

Exclusive, Channel 23

Progress Ind i = 0x8283 - Origination address is non-ISDN

Calling Party Number i = 0x2183, '6097810964'

Plan:ISDN, Type:National

Called Party Number i = 0x80, '3003'

Plan:Unknown, Type:Unknown

00:08:13: ISDN Se0/0:23 Q931: TX -> CALL_PROC pd = 8 callref = 0x8272

Channel ID i = 0xA98381

Exclusive, Channel 1

00:08:13: ISDN Se0/0:23 Q931: RX <- CALL_PROC pd = 8 callref = 0x800A

Channel ID i = 0xA98397

Exclusive, Channel 23

00:08:13: ISDN Se0/0:23 Q931: RX <- PROGRESS pd = 8 callref = 0x800A

Cause i = 0x829C - Invalid number format (incomplete number)

Progress Ind i = 0x8288 - In-band info or appropriate now available

00:08:13: ISDN Se0/0:23 Q931: TX -> PROGRESS pd = 8 callref = 0x8272

Cause i = 0x829C - Invalid number format (incomplete number)

Progress Ind i = 0x8288 - In-band info or appropriate now available

00:08:16: ISDN Se0/0:23 Q931: RX <- DISCONNECT pd = 8 callref = 0x0272

Cause i = 0x8290 - Normal call clearing

00:08:16: ISDN Se0/0:23 Q931: TX -> RELEASE pd = 8 callref = 0x8272

00:08:16: ISDN Se0/0:23 Q931: TX -> DISCONNECT pd = 8 callref = 0x000A

Cause i = 0x8090 - Normal call clearing

00:08:16: ISDN Se0/0:23 Q931: RX <- RELEASE_COMP pd = 8 callref = 0x0272

00:08:16: ISDN Se0/0:23 Q931: RX <- RELEASE pd = 8 callref = 0x800A

00:08:16: ISDN Se0/0:23 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x000A

00:08:24: ISDN Se0/0:23 Q931: RX <- SETUP pd = 8 callref = 0x0273

2 REPLIES
New Member

Re: H.323 gatewat dropping calls inbound from PSTN

Your config is pretty straight forward. It seems after 3 seconds we diconnected the callI would look at the debug voip ccapi inout debugs and the CCM traces to see what is going on?

New Member

Re: H.323 gatewat dropping calls inbound from PSTN

Your "dial-peer voice 1" and "dial-peer voice 20" appear to be overlapping. I would remove the .... and replace it with 3... Also, I would use your access code (eg 9T) in your config. It just makes for less confusion.

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