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VoIP Troubleshooting Guide

Recommended Settings.

Registration

Setup

Please make sure the username and password are set correctly along with the SIP server. If you have copied and pasted the details please make sure you do not copy the ‘space’ at the end of each field.

Networking

If you are using an ATA device please make sure the ATA is getting an IP address by DHCP just to make it easier.
Make sure that port 5060 is open on the router, if you need assistance in opening ports please visit the link below.

www.portforward.com

Service Problems

Problems with Quality?

Make sure the device is setup and configured with the recommended settings above, otherwise you can have quality problems with the service.

The main causes of the quality problem is the quality of the link and if sufficient bandwidth is available on the link to carry the VoIP traffic.

To test whether there is enough bandwidth on the link simply just unplug each LAN device on the network and attempt to make an outgoing call via VoIP.
Once you have confirm there is sufficient bandwidth you will need to run a ping test to the SIP server (58.96.1.2 or sip1.exetel.com.au) to ensure there is not problems on the link like high latency or packet loss.

Key tones not getting registered?

Please make sure you have the DTMF field set correctly to RFC 2833 otherwise any key tones you press will not be picked up.

Netcomm NB9 Troubleshooting

To enter the VoIP setting page just click on.

Voice >> SIP

Please make sure you set the following settings to the ones listed below.

Location selection – It is recommended you set this to “USA” simply because you will have a different dialtone there able to identify if the call is going via VoIP or PSTN.

Preferred Codec – G.729

Preferred Ptime – 40

Use SIP Proxy – Checked

SIP Proxy – sip1.exetel.com.au

SIP Proxy Port – 5060

SIP Proxy Domain – sip1.exetel.com.au

Register Exprire Time – 240

Display Name – VoIP Number

VoIP Number – VoIP number (Supplied in Email)

Auth. ID – VoIP number (Supplied in Email)

Auth. Password – VoIP Password (Supplied in Email)

RTP Payload Type – 96

Everything else should be left at defaults. Should you require further assistance please email voip@exetel.com.au or visit our discussion forums at http://forum.exetel.com.au/