DNS Vulnerability affecting DrayTek

As per the various news reports there is a DNS Vulnerability affecting DrayTek routers. Over the past few days we have been auditing clients who have vulnerable models and a valid maintenance contract with ourselves. Work is already underway to patch devices in this instance however, we would advise all clients with Draytek hardware to check if there device is affected and update firmware as required:

Please see below 3rd party link for full details.

DNS Vulnerability Strikes Popular DrayTek Broadband ISP Routers

As a measure we will be blocking the DNS server used for the exploit on our network. However this could result is a loss of service should your device already be compromised. This unfortunately is a better option than using the compromised DNS server as detailed in the above news report.

If you have any questions please do not hesitate to contact us.

15/03/2018 – Telehouse North (THN) Enablement & Network Expansion

We are pleased to advise that we have recently added Telehouse North to our network location list and will begin enabling this for service over the next few months.

During this time we will be making changes to the current network located in Level3 Goswell Road in order to felicitate this. We hope to keep service disruption to a minimum and NOC notices will be published in advance of any works and the resulting impact they may have to your service.

Goswell Road as a result will be retired and all remaining services moved to our own in house data center. Details on this will follow as the THN migration is planned and the final build phase on our facility is completed.

Structured Communications – Christmas 2017 Change Freeze

Structured Communications will be implementing a change freeze from Monday 18/12/2017 at 01:00 GMT until Thursday 04/01/2018 at 09:00 GMT. This freeze is implemented every year during the busy Christmas period to ensure that no changes are made to our network or infrastructure which could affect services.

The freeze includes all changes to the network, non-essential maintenance, non-pre-planned change requests and infrastructure changes. Structured won’t be undertaking any planned maintenance during this time, unless we are responding to a fault.

Support tickets will not be affected by this change along with christmas changes to PBXs and current “inflight” orders already processing.

If you have any further questions regarding this freeze, please get in touch.

EasyIPT – Caller Display – 07/07/2016

We are aware that 1 of our carriers has been rejecting outbound calls where the caller ID is withheld resulting in the call failing to setup where the call is routed via this carrier.

We are working with them as to why they are rejecting calls sent in this way. Until then and to ensure calls connect without issue with have assigned non-callable outbound numbers to each account that has an anonymous setup.

Calls returned to this number will be met with a non acceptance massage.

DNS Servers – Advisory – 16/02/2016 – 10:30

Following on from yesterdays issue with Google DNS reachability. We are advising all our customers who take our connectivity solutions to ensure they are using our DNS servers.


Clients with IPv6 are advised to contact us for further details.

Unfortunately issues with 3rd party DNS servers are not covered by our network SLA.

2015 Christmas Network Freeze Information

During the Christmas holiday period several of our suppliers will implement network freezes during which non-essential work will be restricted. They are as follows:


No formal freeze, but staffing levels will be reduced over the Christmas period.


From 00:01 on Friday 11th December until 00:01 on Monday 4th January.

TalkTalk Business:

From Wednesday 16th December until Tuesday 5th January. From Wednesday 16th December to Friday 18th December 2015 no Medium & High Risk work will be allowed to proceed. Saturday 19th December 2015 to Monday 4th January 2016 only emergency fault fixes will be allowed.

Virgin Media:

From 17:00 on Friday 11th December until 09:00 on Monday 4th January.

Level 3:

Freeze starts 00:01 on Saturday 12th December and ends 23:59 on Sunday 3rd January 2016. During this period only essential repairs and maintenance will be permitted.


Freeze starts at 18:00 on Friday 18th December until 23:59 on Sunday 3rd January 2016. During this period only emergency repairs and maintenance will be permitted.


Provisioning / Support will be business as usual until 17:00 on Wednesday 23rd December. From that time until 09:00 on Monday 4th January no new installs, routine maintenance or internal network changes will be performed. However, any emergency maintenance required during this time will be performed as normal and advised of through the usual channels.

LON01 – EasyIPT, Unmanaged SIP Accounts ***Service / Settings Change Notice FINAL REMINDER***

As per our NOC notice on the 02/10/2014 which can be found HERE. This is a final reminder to advice of these imminent changes. Any PBX / System that is not reconfigured to our EasyIPT service tonight will lose all inbound and outbound call routing once the existing 3rd party services are terminated.

All numbers will be automatically re-routed to the respective new trunks / accounts once the old services are terminated. In order to restore your services, PBXs will need to be reconfigured as above.

If you require your login information or have any questions, please don’t hesitate to contact us. Any users requiring out of hours assistance can be arranged FOC.

Structured Communications will not be held responsible for any loss of service due to none reconfiguration of PBX / Systems or configuration issues, not limited to incompatible products.

LON01 – EasyIPT, Unmanaged SIP Accounts ***Service / Settings Change Notice***

Following on from previous correspondence in respect to unmanaged SIP accounts we have seen the remaining unmanaged 3rd party PBXs connect to our new platform. As a result of this and in order to provide better levels of support we will only be providing accounts via our EasyIPT SIP solution from the 01/11/2014.

If you have not yet migrated over to your new trunk, then we request you do so by the 31/10/2014 to avoid any disruption in voice services.

Changes will be made to the number formatting of your PBX as the invite format has changed to canonical. Example: “442030000000” This number formatting can be added alongside existing PBX numbers to avoid anytime downtime. You will be able to instantly make outbound calls once your system is registered and once you are ready to swap over inbound calls, please contact support who will complete this for you.

If you are having trouble migrating your system or have any questions, please don’t hesitate to contact us directly.

EasyIPT – Network Changes

In line with a previous NOC announcement whereby a BT IPX outage caused service disruption for our EasyIPT VoIP platform (both managed and unmanaged) Structured Communications have, as a result invested in a redundant carrier grade switch along with private bulk fibre and cross-connects to new and existing voice carriers. (known as upstream providers)

This solution enables us to directly peer with our upstream providers taking out the public internet and resulting in a more robust connection.

These new and existing providers directly terminate in to our carrier grade switch via private SST trunks and our private interconnects. This gives Structured Communications diverse routing in the event of an upstream network issue.

Customers who have a fully managed system with Structured Communications will be automatically migrated outside of hours.

Customers who simply take a SIP trunk from us via our existing carrier will be required to make changes to your PBX. (You will be contacted shortly via the email address on your account)

We are still awaiting the completion of various cross connects from their respective network providers and expect this to take no more than 2 weeks with the migration completed with 4 weeks.

If you have any questions then please don’t hesitate to contact us.

Withdrawal of 02/BE* Wholesale LLU DSL services

The 02 Wholesale network which is used to provide some of our ADSL services is being switched off on the 27th February 2014 following last year’s acquisition of the 02 and BE* retail customer base by Sky.

This news is unwelcome within the industry and requires a change in service we provide to you if you are on an LLU package provided by Structured Communications. BT Wholesale has advised they are accepting migrations from the 02 Wholesale network in light of the recent industry news, This will automatically be arranged by Structured Communications for effected circuits prior to the 27th February 2014.

The current pricing structure and packages will be migrated like for like as will login credentials and IP address settings.

We are starting migrations on the 14th of January 2014 whereby you will experience a brief loss of service while the physical exchange work is completed. (30 minutes average maximum) We hope to have all affected circuits migrated by the 1st February 2014

If you have any questions, please don’t hesitate to contact us on 0203 301 4000