Asterisk

We recommend you create configurations for each Clearly IP Server that your service is setup for. You can locate the Server Domain name, SIP Username and SIP Password from within the SIP Trunking Portal under the Location as outlined here.

XXX with XXX being your Trunking Server Domain name from above
UUU with UUU being your SIP Username
SSS with SSS being your SIP Password

Add the following details to your sip.conf file in Asterisk

[XXX]

register=UUU:SSS@XXX

disallow=all

allow=ulaw

context=from-pstn

type=peer

insecure=port,invite

qualify=yes

qualifyfreq=30

sendrpid=yes

trustrpid=yes

dtmfmode=rfc2833

outofcall_message_context=sms-incoming

username=UUU with UUU being your SIP Username

secret=SSS with SSS being your SIP Password

host=XXX with XXX being your Trunking Server Domain name from above