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Can't dial to DDI T1 trunk to Telco

Hi all,

We have set up a Voip config between Beijing and Hong Kong. However, I can't make call 00852xxxxxxxx to Hong Kong via the DDI T1 trunk. Please find the following reject code and partial config.

Reject code

-----------------------------------

11E9 : 33 11509260ms.32 +-1 +15100 pid:10 Originate 0085221279938
dur 00:00:00 tx:0/0 rx:0/0 6F  (protocol error (111))
Telephony 0/0/0:23 (33) [0/0/0.1] tx:0/0/0ms None noise:0dBm acom:0dBm

----------------------------------

Config

------------------------------------------------

interface Serial0/0/0:23

no ip address
encapsulation hdlc
isdn switch-type primary-4ess
isdn timer T310 60000
isdn not-end-to-end 64
isdn incoming-voice voice
isdn send-alerting
isdn disconnect-cause 3
no cdp enable
!
voice-port 0/0/0:23
!
mgcp behavior g729-variants static-pt
!
dial-peer voice 10 pots
trunkgroup VoIP
description ##  To HK local  ##
destination-pattern 00852T
forward-digits all

dial-peer voice 20 voip
description ##  To BJ  ##
destination-pattern .T
session target ipv4:192.168.1.2
dtmf-relay h245-alphanumeric
ip qos dscp cs5 media
!
dial-peer voice 1 pots
incoming called-number .T
direct-inward-dial
!

-------------------------

Thanks

Leung Che Man

1 REPLY

Re: Can't dial to DDI T1 trunk to Telco

Don't see your trunk group defined under interface, maybe try first port with dial-peer and then with trunk group.

Usage Guidelines

Use this command to define the trunk group. Then if you decide to configure an interface for the Network Side ISDN PRI feature, use a trunk-group interface configuration command to assign the interface to a defined trunk group.

source: http://www.cisco.com/en/US/docs/ios/12_2/dial/command/reference/drfshux.html#wp1052726

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