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pcscfg
2023 Jun 08
1
Problem with pjsip
...he Internet world, VoIP machines route
SIP messages to the IP addresses of the FQDNs of the SIP URIs
(VoIP domain). In the 3GPP world, SIP messages are
routed to an I/P-CSCF (depending on whether we are in interco or in
IPBX) which has a different FQDN from the VoIP domain.
BIV SIP
– P-CSCF FQDN: pcscfgm.orange-obs.fr, resolved by DNS
voice
– VoIP domain: orange-obs.fr, not resolved by voice DNS. ex :
INVITE sip:0142277620 at orange-obs.fr SIP/2.0
2
The VoIP/Internet machine will not be able to determine the address
recipient of SIP messages.
run the command “nslookup pcscfgm.orange-obs.fr” and...