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Jan 24 |
[Comtec Announce] [IP Voice Services] - EMERGENCY Engineering Work: 23/01/2013 PEWA0119
Posted by Nigel Kingston on 24 January 2013 09:50 AM |
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Please be advised of the following Emergency engineering works on the IP Voice Services platform: Date: 23:00 to 23:59 on Wednesday, 23/01/2013 Purpose The IPVS Engineering Team will be carrying out works to implement a vendor supplied patch to the Application Server clusters in the Core Voice Architecture between 2300 on 23/01/2013 and 0000 on 24/01/2013 to address the exception observed on 16/01/2013. Impact Due to the redundant nature of the platform there is no expected effect to Voice Services, as while an element in the cluster is being patched, its peer will sustain normal service. Regards, Comtec Network Operation Centre For urgent operational issues please always contact noc at comtec.com or 0845 899 1423 and not any named individual. Read more » | |
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Jan 22 |
[Comtec Announce] [IP Voice Services] Planned Engineering Work 26/01/2013
Posted by Nigel Kingston on 22 January 2013 09:08 AM |
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Please be advised of the following planned engineering works on the IP Voice Services platform: Date: Saturday 26/01/13 23:00 to Saturday 27/01/13 02:00 Purpose The Engineering Team will be carrying out works to replace a Session Border Controller (SBC) cluster with new hardware between 2300 on 26/01/2013 and 0200 27/01/2013. Due to the redundant nature of the cluster whilst one element is replaced all existing calls and new traffic will be served by the secondary element, when service is switched from one element to another all call and registration states will be sustained. There is no expected effect on voice calls as a result of these works. Impact Expected impact is LOW. They will be closely monitoring the potentially affected systems to ensure any disruption is as brief as possible if experienced. Regards, Comtec Network Operation Centre For urgent operational issues please always contact noc at comtec.com or 0845 899 1423 and not any named individual. Read more » | |
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Jan 16 |
[Comtec Announce] [IP Voice Services] - Service Alert : SAA0054 SBC 16/01/2012 - Update 5
Posted by Michael Cullen on 16 January 2013 04:42 PM |
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We have received the following update from BT and they have confirmed that the issue has been resolved. If you are still having issues then please try rebooting your phone system or hosted handset in the first instance and then raise a support ticket in the normal way if you are having further issues. Regards, Michael
There was a re-occurrence of this issue between 1125 and 1130. This issue has now been resolved and root cause analysis has identified the following: 1. At 1100 we witnessed traffic rise to unusually high levels.
2. Due to the abnormally high level of this traffic our management platform alerted our NOC Team to the issue immediately. 3. The congestion caused by this increase caused a subset of customer endpoints to loose registration and/or the ability to initiate or receive new calls. At this stage all active calls were maintained. 4. The NOC Team worked to identify the root cause of the traffic increase. 5. Between 1105 and 1125 normal traffic levels resumed and all effected endpoints re-registered and were able to establish new calls. 6. Between 1125 and 1130 the congesting level of traffic re-occurred causing some endpoints to lose registration and/or be unable to make and receive calls again. 7. At 1127 the NOC Team were able to identify the source of the traffic through the use of real time and historic logging. 8. At 1130 protection mechanisms were implemented to prevent the offending source from continuing to originate traffic. 9. We are now working with the Vendor of our Core Architecture on this issue to understand why this source was allowed to introduce such high levels of traffic. Only when this has been addressed will we relax the protection mechanisms put in place. Once again please accept our apologies for any inconvenience caused. A further update will be supplied once investigations in conjunction with our Vendor are complete. Read more » | |
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Jan 16 |
[Comtec Announce] [IP Voice Services] - Service Alert : SAA0054 SBC 16/01/2012 11:00-11:05 - Update 4
Posted by Michael Cullen on 16 January 2013 02:19 PM |
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We have been monitoring the IP Voice service and have had an extended period of stability and no further reported issues, However we have not had confirmation from BT that the issue is now resolved. We are working with BT to confirm that it is now resolved and will send an update when we know more Regards, Michael
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Jan 16 |
[Comtec Announce] [IP Voice Services] - Service Alert : SAA0054 SBC 16/01/2012 11:00-11:05 - Update 3
Posted by Michael Cullen on 16 January 2013 11:49 AM |
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Following the recent update from BT we are aware that there are still ongoing issue with the IP Voice service. We are working with BT to get service restored and stable as quickly as possible. We will release further updates as and when we have more information Regards, Michael
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Jan 16 |
[Comtec Announce] [IP Voice Services] - Service Alert : SAA0054 SBC 16/01/2012 11:00-11:05 - Update 2
Posted by Michael Cullen on 16 January 2013 11:42 AM |
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We have received the following update from BT As advised by BT below if you are still having issues then please reboot your phone system or hosted handset. Regards, Michael
Date : 16/01/2013 Start : 11:00 End : 11:05 The network team was alerted to an issue on the session border controller. Some users may have briefly lost registration and some new call attempts may not have been successful. Engineering are currently investigating the root cause and we will provide updates as more information becomes available. Any users that have not re-registered automatically, please reboot. Apologies for the inconvenience caused Read more » | |