I get the same thing happening doing any of the tests you mentioned. Could it be something in my Hunt Group setup for voicemail on Cisco Unified CM? The route partition, what does that need to be? ... View more

Hi Hari, Yes I have done that also, the same thing happens. The call rings through to the external number but when it is answered the caller isn't transfered to the line. The music just keeps playing for the caller and the external number hears nothing. ... View more

Just an update to this... I have managed to get the external number ringing. For example, caller hears the greeting and presses 2, the call then goes through to the external number and rings... however, when that external number answers, there is nothing on the end of the line. All the caller hears is music like it is attempting to transfer the call.   What could be going wrong? ... View more

Could anyone help with this? ... View more

Transfer to an internal number works fine. Like I said we've already got it setup so that caller inputs go to different internal numbers. ... View more

OK, so looks like the pvdms were in the show inventory command, not sure why or how I managed to miss it. Below is the result from the command.   Just out of interest, I tried inserting the T1 Loopback cable in to the back of the white BT box (pictured in my original post). I replaced it in the same port as the pink cable that came from the PX router. When I did that the "CUST" light was still amber, could it be an issue with the BT box or would the T1 Loopback cable have no affect when inserted in to the BT box?   pxrouter>show inventory NAME: "CISCO2911/K9 chassis", DESCR: "CISCO2911/K9 chassis" PID: CISCO2911/K9 , VID: V02 , SN: FXXXXXXXXX NAME: "VWIC2-1MFT-T1/E1 - 1-Port RJ-48 Multiflex Trunk - T1/E1 on Slot 0 SubSlot 0", DESCR: "VWIC2-1MFT-T1/E1 - 1-Port RJ-48 Multiflex Trunk - T1/E1" PID: VWIC2-1MFT-T1/E1 , VID: V01 , SN: FXXXXXXXXX NAME: "PVDM3 DSP DIMM with 32 Channels on Slot 0 SubSlot 4", DESCR: "PVDM3 DSP D IMM with 32 Channels" PID: PVDM3-32 , VID: V01 , SN: FXXXXXXXXX NAME: "PVDM3 DSP DIMM with 16 Channels on Slot 0 SubSlot 5", DESCR: "PVDM3 DSP D IMM with 16 Channels" PID: PVDM3-16 , VID: V01 , SN: FXXXXXXXXXX NAME: "C2911 AC Power Supply", DESCR: "C2911 AC Power Supply" PID: PWR-2911-AC , VID: V01, SN: AXXXXXXXX ... View more

I will run the "show inventory" command again incase I've missed something. I'll also run the "show voice DSP" command and report back here. It'll probably be Monday now, unless I get some time to sit down at the weekend to look at it.   Once again, thanks for all the help and advice. ... View more

Sorry, did everything look OK frrom the other commands that I'd run? Nothing unsual, that would cause this problem? ... View more

No, I didn't truncate the show inventory. I'm not sure what PVDMs are, sorry.   What do you mean by bounce the router?   We called the carrier again and they said they would be sending out an engineer. Not sure when they will come tho! ... View more

In my original post I had changed the password letters/numbers however, I have removed the entery all together now.   The config on the system has not been touched or changed. It's been the same it has since it was first set up. How do I confirm number of channels this circuit is configured for?   Below are responses from all the commands you suggested:   pxrouter>show version Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.0(1)M4, REL EASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2010 by Cisco Systems, Inc. Compiled Thu 28-Oct-10 18:32 by prod_rel_team ROM: System Bootstrap, Version 15.0(1r)M9, RELEASE SOFTWARE (fc1) pxrouter uptime is 2 years, 2 weeks, 6 days, 1 hour, 14 minutes System returned to ROM by power-on System restarted at 13:28:21 BST Thu Jul 20 2017 System image file is "flash0:c2900-universalk9-mz.SPA.150-1.M4.bin" Last reload type: Normal Reload This product contains cryptographic features and is subject to United States and local country laws governing import, export, transfer and use. Delivery of Cisco cryptographic products does not imply third-party authority to import, export, distribute or use encryption. Importers, exporters, distributors and users are responsible for compliance with U.S. and local country laws. By using this product you agree to comply with applicable laws and regulations. If you are unable to comply with U.S. and local laws, return this product immediately. A summary of U.S. laws governing Cisco cryptographic products may be found at: http://www.cisco.com/wwl/export/crypto/tool/stqrg.html If you require further assistance please contact us by sending email to export@cisco.com. Cisco CISCO2911/K9 (revision 1.0) with 479232K/45056K bytes of memory. Processor board ID FCZ1504740K 3 Gigabit Ethernet interfaces 31 Serial interfaces 1 Channelized E1/PRI port DRAM configuration is 64 bits wide with parity enabled. 255K bytes of non-volatile configuration memory. 248472K bytes of ATA System CompactFlash 0 (Read/Write) License Info: License UDI: ------------------------------------------------- Device# PID SN ------------------------------------------------- *0 CISCO2911/K9 FCZXXXXXXXXX   Technology Package License Information for Module:'c2900' ---------------------------------------------------------------- Technology Technology-package Technology-package Current Type Next reboot ----------------------------------------------------------------- ipbase ipbasek9 Permanent ipbasek9 security None None None uc uck9 Permanent uck9 data None None None Configuration register is 0x2102   pxrouter>show inventory NAME: "CISCO2911/K9 chassis", DESCR: "CISCO2911/K9 c PID: CISCO2911/K9 , VID: V02 , SN: FXXXXXXXXXXX NAME: "VWIC2-1MFT-T1/E1 - 1-Port RJ-48 Multiflex Tru 0", DESCR: "VWIC2-1MFT-T1/E1 - 1-Port RJ-48 Multifl PID: VWIC2-1MFT-T1/E1 , VID: V01 , SN: FXXXXXXXXXXX   pxrouter>show controller E1 E1 0/0/0 is down. Applique type is Channelized E1 - balanced Transmitter is sending remote alarm. Receiver is getting AIS. alarm-trigger is not set Version info Firmware: 20100222, FPGA: 13, spm_count = 0 Framing is CRC4, Line Code is HDB3, Clock Source is Line. Data in current interval (153 seconds elapsed): 0 Line Code Violations, 0 Path Code Violations 0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins 0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 153 Unavail Secs Total Data (last 24 hours) 2369 Line Code Violations, 18 Path Code Violations, 2 Slip Secs, 1 Fr Loss Secs, 2 Line Err Secs, 0 Degraded Mins, 2 Errored Secs, 0 Bursty Err Secs, 1 Severely Err Secs, 86352 Unavail Secs   pxrouter>show isdn service PRI Channel Statistics: %Q.931 is backhauled to CCM MANAGER 0x0003 on DSL 0. Layer 3 output may not appl y ISDN Se0/0/0:15, Channel [1-31] Configured Isdn Interface (dsl) 0 Channel State (0=Idle 1=Proposed 2=Busy 3=Reserved 4=Restart 5=Maint_Pend) Channel : 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 State : 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Service State (0=Inservice 1=Maint 2=Outofservice 8=MaintPend 9=OOSPend) Channel : 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 State : 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 pxrouter>show ccm-manager MGCP Domain Name: pxrouter Priority Status Host ============================================================ Primary Registered 10.XXX.XX.X First Backup Backup Ready 10.XXX.XX.X Second Backup None Current active Call Manager: 10.XXX.XX.X Backhaul/Redundant link port: 2428 Failover Interval: 30 seconds Keepalive Interval: 15 seconds Last keepalive sent: 14:55:04 BST Aug 9 2019 (elapsed time: 00:00:03) Last MGCP traffic time: 14:55:04 BST Aug 9 2019 (elapsed time: 00:00:03) Last failover time: 23:02:02 BST Jul 23 2018 from (10.193.12.6) Last switchback time: 23:02:32 BST Jul 23 2018 from (10.193.12.5) Switchback mode: Graceful MGCP Fallback mode: Not Selected Last MGCP Fallback start time: None Last MGCP Fallback end time: None MGCP Download Tones: Disabled TFTP retry count to shut Ports: 2 Backhaul Link info: Link Protocol: TCP Remote Port Number: 2428 Remote IP Address: 10.XXX.XX.X Current Link State: OPEN Statistics: Packets recvd: 372264 Recv failures: 0 Packets xmitted: 410432 Xmit failures: 0 PRI Ports being backhauled: Slot 0, VIC 0, port 0 Configuration Auto-Download Information ======================================= Current version-id: 1389010238-6e6580f9-93e4-42f5-aad4-0a34802cd98a Last config-downloaded:00:00:00 Current state: Waiting for commands Configuration Download statistics: Download Attempted : 17 Download Successful : 17 Download Failed : 0 TFTP Download Failed : 3 Configuration Attempted : 5 Configuration Successful : 5 Configuration Failed(Parsing): 0 Configuration Failed(config) : 0 Last config download command: New Registration FAX mode: cisco Configuration Error History: no network-clock-participate wic 0 end   ... 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OK, so got the T1 cable made the results are:   With original cable from BT ISDN box: Layer 1 Status: DEACTIVATED With NO cable: Layer 1 Status: DEACTIVATED With T1 Loopback Cable: Layer 1 Status: ACTIVATED   What does that mean?   Below are the results from the show run command:   pxrouter#show run Building configuration... Current configuration : 2908 bytes ! ! Last configuration change at 12:01:45 BST Wed Aug 7 2019 ! NVRAM config last updated at 12:01:45 BST Wed Aug 7 2019 ! version 15.0 service timestamps debug datetime msec service timestamps log datetime msec service password-encryption ! hostname pxrouter ! boot-start-marker boot-end-marker ! card type e1 0 0 ! no aaa new-model clock timezone GMT 0 clock summer-time BST recurring last Sun Mar 1:00 last Sun Oct 2:00 network-clock-participate wic 0 network-clock-select 1 E1 0/0/0 ! no ipv6 cef ip source-route ip cef ! ! ! ! multilink bundle-name authenticated ! ! ! ! isdn switch-type primary-net5 ! ! ! voice-card 0 dspfarm dsp services dspfarm ! ! ! ! ! ! license udi pid CISCO2911/K9 sn ABC1234567 hw-module pvdm 0/0 ! hw-module pvdm 0/1 ! ! ! ! redundancy ! ! controller E1 0/0/0 pri-group timeslots 1-31 service mgcp ! ! ! ! ! interface GigabitEthernet0/0 ip address 10.XXX.XX.X 255.255.255.255 duplex auto speed auto ntp broadcast ! interface GigabitEthernet0/1 no ip address shutdown duplex auto speed auto ! interface GigabitEthernet0/2 no ip address shutdown duplex auto speed auto ! interface Serial0/0/0:15 no ip address encapsulation hdlc isdn switch-type primary-net5 isdn incoming-voice voice isdn bind-l3 ccm-manager no cdp enable ! ip forward-protocol nd ! no ip http server no ip http secure-server ! ip route 0.0.0.0 0.0.0.0 10.XXX.XX.X ! ! ! ! control-plane ! ! voice-port 0/0/0:15 cptone GB ! ccm-manager redundant-host 10.XXX.XX.X ccm-manager mgcp ccm-manager music-on-hold bind GigabitEthernet0/0 ccm-manager config server 10.XXX.XX.X 10.XXX.XX.X ccm-manager config ! mgcp mgcp call-agent 10.XXX.XX.X 2427 service-type mgcp version 0.1 mgcp dtmf-relay voip codec all mode out-of-band mgcp rtp unreachable timeout 1000 action notify mgcp modem passthrough voip mode nse mgcp package-capability rtp-package mgcp package-capability sst-package mgcp package-capability pre-package mgcp default-package mt-package no mgcp timer receive-rtcp mgcp sdp simple mgcp fax t38 ecm mgcp bind control source-interface GigabitEthernet0/0 mgcp bind media source-interface GigabitEthernet0/0 ! mgcp profile default ! sccp local GigabitEthernet0/0 sccp ccm 10.XXX.XX.X identifier 2 priority 1 version 7.0 sccp ccm 10.XXX.XX.X identifier 1 priority 2 version 7.0 sccp ! sccp ccm group 1 bind interface GigabitEthernet0/0 associate ccm 2 priority 1 associate ccm 1 priority 2 associate profile 1 register MTPc89c1d189a58 ! dspfarm profile 1 transcode codec g711ulaw codec g711alaw codec g729ar8 codec g729abr8 maximum sessions 13 associate application SCCP ! ! ! ! gatekeeper shutdown ! ! line con 0 logging synchronous line aux 0 line vty 0 4 logging synchronous login ! scheduler allocate 20000 1000 ntp master 5 ntp server 10.XXX.XXX.XX end   ... View more

Sorry, I'm new to all this so please bear with me.   Firstly, how do I know if the  serial interface is in a up state?   Secondly, how can I post the config on the gateway? Do I get to it through Cisco Call Manager?   If you can let me know, I'll post the information. Thank you for the help. Much appreciated. ... View more

I'm going to attempt to make one tomorrow and do the test. Is it just a matter of plugging in the test cable and running the "show ISDN status" command? I don't have to configure anything? ... View more

Very interesting, thank you. I'll try and make one by the end of this week and get back with the results.   Just out of interest do you know a good website that has detailed instructions on how to make one? I've had a quick look but couldn't find detailed step by step guide. ... View more