Setup guides
Step-by-step configuration for the IP PBXs and softphones our customers use most. All of them speak standard SIP, so if yours is not here it will still work — ask us and we will send you the parameters.
IP PBXs
Connect a phone system you already run to a SipandVoip SIP trunk.
Asterisk
Trunk registration, dialplan and NAT settings.
Open guide3CX
Trunk registration, dialplan and NAT settings.
Open guideFreeSWITCH
Trunk registration, dialplan and NAT settings.
Open guideMitel
Trunk registration, dialplan and NAT settings.
Open guideSoftphones
Register a single extension on a laptop, tablet or mobile.
Three things that fix most problems
Before you open a ticket, it is worth checking these — between them they account for the large majority of setup issues we see.
Turn off SIP ALG
Almost every consumer and small-business router ships with SIP ALG enabled. It rewrites SIP packets badly and causes one-way audio and dropped calls. Disable it.
Tell the PBX its public address
A PBX behind NAT must be told its external IP or hostname and its local subnet, otherwise it advertises a private address in SDP and media never arrives.
Send numbers in E.164
Strip trunk access prefixes before the call leaves your PBX and present the destination in full international format. It removes an entire class of routing failures.
Device not listed?
If it speaks SIP, it will work. Tell us what you have and we will send you the exact parameters for it.