Monday, 19 November 2012

Outsourced engineering

Are you a telecoms dealer who is finding it more and more difficult to train engineers to the required standard of a particular manufacturer. Are the scenarios below familiar to you?


  • We won't sell you this solution until you have got an engineer (or two) through this two week training course at a cost of £3000 + Wages + Hotel + loss of productivity.



  • We know this bolt on piece of software is dead simple and only has 10 settings, but we won't take a support call on it when it appears to have bugs, because your engineer hasn't done the 30 minute online course at a cost of £150.



  • I did put my engineer through a course, but since it then took me another year to actually sell the widget in question, he no longer has any idea how it works.
If the above sounds familiar, then head over to our website and take a look. Because we offer white label engineering services on behalf of a number of dealers, we see the products on a more regular basis than may be the case within a single dealership. So this makes it worth our while to both keep up with training and to train more engineers.


We are currently fitting

Mitel HX 5000
Mitel Call Director (3300)
Mitel Customer Service Manager
Xarios Phone Manager
Mitel Border Gateway
Mitel Unified Communicator
NEC SVM

We have experience on older systems such as
Ericsson (Aastra) Businessphone
Siemens HiPath
Samsung DCS, IDCS
Toshiba

Tuesday, 6 November 2012

Obit SIP trunks on Mitel 5000

We recently ran some testing on an Obit SIP trunk to see if it worked OK with the Mitel 5000 pbx. Mitel have a range of suppliers who have tested with them, but a supplier of ours asked us to test Obit for them.  Below is the detail of the test setup and the programming done to get it all working. Hopefully it will help someone else.

Obit Trunk Testing.
Test equipment was :-
Mitel CS5000 software version 5.0
Netgear Prosafe FVS338 firewall, provided with a static public IP address. (Note this firewall runs completely different software to the cheaper FVS318’s). SIP ALG was turned off. The phone system was NAT’ed
The router was set with no port forwarding relating to SIP, rather the Ping option of the phone system to the obit server opens the port at a regular interval, allowing traffic to be sent inbound from the obit server to the phone system.
System was provided with SIP trunk license for each obit trunk.
A Sip Peer / Sip Trunk group was created.
Registration – Off           
Authentication – Not used
Keep Alive – Yes
                Ping Interval – 60
                Ping Failure threshold – 5
NAT settings – Non Sip Aware NAT
Alternate IP - Empty
Route Set – Empty
IP address – obit server ip xxx.xxx.xxx.xxx
Port number – 5060
FQDN – blank
Call Configuration – (Select a call config with G711 and 20msec playback delay buffer)
Operating State – (Set ‘In Service’ when config is finished)
Maximum Number of Calls – (To match amount of trunks purchased)
Use ITU-T E.164 – No
Static Binding – Yes
Use Peer Address in from Header – No

Trunk Group Configuration
Create a SIP trunk for each trunk purchased.

Call Routing table entries.
Should be in the format such that an inbound call to 01159610400 presents as
441159610400 in the left most column.

Extension Calling Party Number
Set in the format 01159610400 for each extension set to go outbound on SIP.

IP Settings
Set the ‘System NAT address’ to be the public IP address of the firewall.

IP Connections
P6xxx (the default is usually P6000) set the NAT address as the public IP of the firewall.

You can contact us via our website www.telecomcare.net

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