Technical Questions
Tech Connections generic SIP settings for connecting a SIP compliant device to our service
Customers with their own SIP enabled phone, gateway or PBX are free to use this to connect to Tech Connections's service. The device must be SIP v2 compatible. Refer to the settings below for a guide to how you should configure your device to connect ...
DIsabling SIP Application Layer Gateway (ALG) functionality
If you are experiencing one way voice particularly on incoming calls the most probable cause is SIP ALG. While originally designed to resolve a NAT related problems, with no standard implementation many routers and software based firewalls corrupt ...
Ports and Hostnames
Ports and Hostnames DNS Settings Proxy phone.techconnections.co.nz TCP/TLS Proxy phone.techconnections.co.nz (port 5061) SIP Peering IP Address 103.212.52.50 Other Our RTP Port Range 20000-50000 Our T.38 (faxing) UDPTL Port Range 20000-50000 Fax ...
What Codecs do Tech Connections Support?
Codec Support Voice: G.722 (wideband), G.711 A Law, G.711 U Law, GSM, iLBC, G.729 and G.726 with automatic transcoding between codecs. Video: H.264 and H.263. Fax: T.38 pass-through and termination (Redundancy Mode)
NAT and SIP ALG
NAT NAT Traversal NAT can interfere with SIP and RTP by changing the ports on the way through. To counter we enable NAT traversal by default therefore communicating directly to the port that sent us the original RTP traffic (instead of sending back ...
Problems with DTMF (Pressing digits during a call)
Problems with DTMF (Pressing digits during a call) If you are reporting that your IVR is intermittently failing when pressing the menu selections of your Auto Attendant, it highly likely that the in-house PBX has a DTMF issue. In summary, you’ll need ...
Can I use my existing phone with Tech Connections?
As a SIP or VoIP service provider you will require an IP telephone handset to make calls on the Tech Connections network or you can use our Mobiex Apps on your Smartphone. Commonly used SIP handsets are those by Yealink, Polycom and Cisco/Linksys. ...
Can I run my alarm systems across Tech Connections VOIP?
No. While you may be able to get your alarm system working over our VOIP platforms we do not recommend this and recommend an IP based alarm system or one using a traditional analogue phone line.
Can I use the Tech Connections Cloud PBX if my on-premise PBX fails
Can I use the Tech Connections Cloud PBX if my on-premise PBX fails? Yes, absolutely. · Location: CloudPBX > select number > Inbound Calls · Summary: Setting up a second layer of redundancy on your PBX. · Detail: Leverage our hosted cloud PBX voice ...
Will my service work if there is a power cut?
Will my service work if there is a power cut? Your Tech Connections service requires power to work as your broadband modem will not function without it. To ensure that you never lose inbound calls in the case of a power failure, we recommend that you ...
SIP Registration, Peering and IAX2 explained
SIP Registration, Peering and IAX2 explained Tech Connections supports SIP registration, SIP peering and IAX2 registration to connect your VoIP service. SIP Registration The simplest of the three connection types “Registration” is used to connect IP ...
Why can’t I register my VoIP device?
Why can’t I register my VoIP device? Firewalls and Interfering routers are the most common cause of SIP registration failure with your VoIP device where the firewall/router blocks incoming traffic required by our SIP registration process. Remember ...
Bogus or Spam incoming calls
Bogus or Spam incoming calls If you’re experiencing spam or phantom incoming calls that appear as “blocked” or CLIs such as 100 you are probably the victim of a form of malicious attack. In summary they come in two forms: An overseas call centre has ...