Good evening, everyone.
I am trying to configure my landline number on the Freepbx LAN VoIP switchboard. However, entering the basic credentials that I find in my customer area under the landline section does not work. If I enter the same credentials in my router [FritzBox 5590 Fiber] and on my Yealink T31P, then they work and I can receive and make calls. As far as I understand, Freepbx requires additional strings, as I have seen from some community posts I found in this forum and others. However, when I try to implement those strings by replacing them with my values, nothing changes and the number on Freepbx still does not register. Does anyone know anything about this? Any advice or suggestions are welcome.
Endpoint: Centralino Not in use 0 of inf
OutAuth: Centralino/xyz@abc.ch
Aor: Centralino 0
Contact: Centralino/sip:+41\*\*\*\*\*\*\*\*\*@voip.swisscom. 4dd4415f9d Avail 18.185
Transport: 0.0.0.0-udp udp 3 96 0.0.0.0:5060
Identify: Centralino/Centralino
Match: 138.188.111.251/32
Match: 138.188.110.251/32
ParameterName : ParameterValue
100rel : yes
accept_multiple_sdp_answers : false
accountcode :
acl :
aggregate_mwi : true
allow : (ulaw|alaw|gsm|g726|g722|h264|mpeg4)
allow_overlap : true
allow_subscribe : true
allow_transfer : true
allow_unauthenticated_options : false
aors : Centralino
asymmetric_rtp_codec : false
auth :
bind_rtp_to_media_address : false
bundle : false
call_group :
callerid : <unknown>
callerid_privacy : allowed_not_screened
callerid_tag :
codec_prefs_incoming_answer : prefer:pending, operation:intersect, keep:all, transcode:allow
codec_prefs_incoming_offer : prefer:pending, operation:intersect, keep:all, transcode:allow
codec_prefs_outgoing_answer : prefer:pending, operation:intersect, keep:all, transcode:allow
codec_prefs_outgoing_offer : prefer:pending, operation:union, keep:all, transcode:allow
connected_line_method : invite
contact_acl :
contact_user : 41*********
context : from-pstn-toheader
cos_audio : 0
cos_video : 0
device_state_busy_at : 0
direct_media : false
direct_media_glare_mitigation : none
direct_media_method : invite
disable_direct_media_on_nat : false
dtls_auto_generate_cert : No
dtls_ca_file :
dtls_ca_path :
dtls_cert_file :
dtls_cipher :
dtls_fingerprint : SHA-256
dtls_private_key :
dtls_rekey : 0
dtls_setup : active
dtls_verify : No
dtmf_mode : auto
fax_detect : false
fax_detect_timeout : 0
follow_early_media_fork : true
force_avp : false
force_rport : true
from_domain : voip.swisscom.ch
from_user : +41*********
g726_non_standard : false
geoloc_incoming_call_profile :
geoloc_outgoing_call_profile :
ice_support : false
identify_by : username,ip
ignore_183_without_sdp : false
inband_progress : false
incoming_call_offer_pref : local
incoming_mwi_mailbox :
language : it
mailboxes :
max_audio_streams : 1
max_video_streams : 1
media_address :
media_encryption : no
media_encryption_optimistic : false
media_use_received_transport : false
message_context :
moh_passthrough : false
moh_suggest : default
mwi_from_user :
mwi_subscribe_replaces_unsolicited : no
named_call_group :
named_pickup_group :
notify_early_inuse_ringing : false
one_touch_recording : false
outbound_auth : Centralino
outbound_proxy : sip:fs1.voip.swisscom.ch
outgoing_call_offer_pref : remote_merge
overlap_context :
pickup_group :
preferred_codec_only : false
record_off_feature : automixmon
record_on_feature : automixmon
refer_blind_progress : true
rewrite_contact : true
rpid_immediate : false
rtcp_mux : false
rtp_engine : asterisk
rtp_ipv6 : false
rtp_keepalive : 0
rtp_symmetric : true
rtp_timeout : 0
rtp_timeout_hold : 0
sdp_owner : -
sdp_session : Asterisk
security_mechanisms :
security_negotiation : no
send_aoc : false
send_connected_line : no
send_diversion : true
send_history_info : false
send_pai : true
send_rpid : false
set_var :
srtp_tag_32 : false
stir_shaken : off
stir_shaken_profile :
sub_min_expiry : 0
subscribe_context :
suppress_q850_reason_headers : false
t38_bind_udptl_to_media_address : false
t38_udptl : false
t38_udptl_ec : none
t38_udptl_ipv6 : false
t38_udptl_maxdatagram : 0
t38_udptl_nat : false
timers : yes
timers_min_se : 90
timers_sess_expires : 1800
tone_zone :
tos_audio : 0
tos_video : 0
transport : 0.0.0.0-udp
trust_connected_line : yes
trust_id_inbound : false
trust_id_outbound : false
use_avpf : false
use_ptime : false
user_eq_phone : true
voicemail_extension :
webrtc : no
[2025-08-25 22:51:27] WARNING[14752]: res_pjsip_outbound_registration.c:1383 handle_registrationresponse: 403 Forbidden fatal response received from 'sip:voip.swisscom.ch' on registration attempt to 'sip:CPctwxyz@abc.ch', retrying in '30' seconds