PJSIP configuration on Asterisk
Simtex SIP Trunks from $4.99/month
Business-grade SIP trunking with geo-redundant infrastructure, crystal-clear audio, and Australian-based support. Pay-as-you-go or unlimited plans available.
SIP Servers:
- West Coast (AU):
siptcp.simtex.com.au - East Coast (AU):
siptcpeast.simtex.com.au
Choose the server closest to your location. Our platform publishes SRV records for automatic failover between geo-redundant server farms.
If your server is behind NAT, you may also need to add
local_net and external_media_address to your transport configuration.East Coast? Replace
siptcp.simtex.com.au with siptcpeast.simtex.com.au in the server_uri if your server is located on the East Coast of Australia.Always use strong, unique credentials for your extensions — weak passwords are the most common cause of toll fraud on Asterisk systems.
Last updated 26 March 2026