GXP Grandstream Configuration
1. Open the web interface and click on ACCOUNTS then General Settings
2. Enter the following information:
Account Name: SpinTel
SIP Server: voip.syd.spintel.net.au
Outbound Proxy: voip.syd.spintel.net.au
SIP User ID: Your sip number (XXXXXX)
Authentication ID: Your sip number (XXXXXX)
Authenticate Password: Your sip-number password
Click Save and Apply
3. Go to Network Settings, set NAT Traversal to Keep-Alive
Click Save and Apply
4. Go to SIP Settings then Basic Settings
Enable options keep alive: Yes
SIP Transport: UDP, unless modem is 4G then TCP.
Click Save and Apply
5. Go to Audio Settings
Make sure that it is setup to the information below:
Preferred Vocoder - choice 1 should be G711 or PCMA
Preferred Vocoder - choice 2 should be G729A/B