localhost*CLI> config show help res_pjsip aor contact[aor]
contact = [Custom](Default: )(Regex: false) 
Permanent contacts assigned to AoR 
 Contacts specified will be called whenever referenced by 'chan_pjsip'.
 Use a separate "contact=" entry for each contact required. Contacts are
 specified using a SIP URI.

localhost*CLI> config show help res_pjsip endpoint
endpoint: [category !~ /.?/] 
Endpoint 
 The *Endpoint* is the primary configuration object. It contains the core
SIP related options only, endpoints are *NOT* dialable entries of their own.
Communication with another SIP device is accomplished via Addresses of Record(AoRs)which have one or more contacts assicated with them. Endpoints *NOT*
configured to use a 'transport' will default to first transport found in"pjsip.conf" that matches its type.
Example: An Endpoint has been configured with no transport. When it comestime to call an AoR, PJSIP will find the first transport that matches the
type. A SIP URI of 'sip:5000@[11::33]' will use the first IPv6 transport and
try to send the request.
If the anonymous endpoint identifier is in use an endpoint with the name"anonymous@domain" will be searched foras a last resort. If this is not found
it will fall back to searching for"anonymous". If neither endpoints are found
the anonymous endpoint identifier will not return an endpoint and anonymous
calling will not be possible. 
100rel                    -- Allow support for RFC3262 provisional ACK tags
aggregate_mwi             --
allow                     -- Media Codec(s) to allow
aors                      -- AoR(s) to be used with the endpoint
auth                      -- Authentication Object(s) associated with the endpoint
callerid                  -- CallerID information for the endpoint
callerid_privacy          -- Default privacy level
callerid_tag                 -- Internal id_tag for the endpoint
context                         -- Dialplan context for inbound sessions
direct_media_glare_mitigation -- Mitigation of direct media (re)INVITE glare
direct_media_method       -- Direct Media method type
connected_line_method     -- Connected line method type
direct_media              -- Determines whether media may flow directly between endpoints.
disable_direct_media_on_nat -- Disable direct media session refreshes when NAT obstructs the med
disallow                  -- Media Codec(s) to disallow
dtmf_mode                 -- DTMF mode
media_address             -- IP address used in SDP for media handling
force_rport               -- Force use of return port
ice_support               -- Enable the ICE mechanism to help traverse NAT
identify_by               -- Way(s)for Endpoint to be identified
redirect_method           -- How redirects received from an endpoint are handled
mailboxes                 -- NOTIFY the endpoint when state changes for any of the specified m
moh_suggest               -- Default Music On Hold class
outbound_auth             -- Authentication object used for outbound requests
outbound_proxy            -- Proxy through which to send requests, a full SIP URI must be prov
rewrite_contact           -- Allow Contact header to be rewritten with the source IP address-p
rtp_ipv6                  -- Allow use of IPv6 for RTP traffic
rtp_symmetric             -- Enforce that RTP must be symmetric
send_diversion            -- Send the Diversion header, conveying the diversion information to
send_pai                  -- Send the P-Asserted-Identity header
send_rpid                 -- Send the Remote-Party-ID header
timers_min_se             -- Minimum session timers expiration period
timers                    -- Session timers for SIP packets
timers_sess_expires       -- Maximum session timer expiration period
transport                 -- Desired transport configuration
trust_id_inbound          -- Accept identification information received from this endpoint
trust_id_outbound         -- Send private identification details to the endpoint.type-- Must be of type'endpoint'.
use_ptime                 -- Use Endpoints requested packetisation interval
use_avpf                  -- Determines whether res_pjsip will use and enforce usage of AVPF f
media_encryption          -- Determines whether res_pjsip will use and enforce usage of media
inband_progress           -- Determines whether chan_pjsip will indicate ringing using inband
call_group                -- The numeric pickup groupsfor a channel.
pickup_group              -- The numeric pickup groups that a channel can pickup.
named_call_group          -- The named pickup groupsfor a channel.
named_pickup_group        -- The named pickup groups that a channel can pickup.
device_state_busy_at      -- The number of in-use channels which will cause busy to be returne
t38_udptl                 -- Whether T.38 UDPTL support is enabled or not
t38_udptl_ec              -- T.38 UDPTL error correction method
t38_udptl_maxdatagram     -- T.38 UDPTL maximum datagram size
fax_detect                -- Whether CNG tone detection is enabled
t38_udptl_nat             -- Whether NAT support is enabled on UDPTL sessions
t38_udptl_ipv6            -- Whether IPv6 is used for UDPTL Sessions
tone_zone                 -- Set which countrys indications to use for channels created for t
language                  -- Set the default language to use for channels created for this end
one_touch_recording       -- Determines whether one-touch recording is allowed for this endpoi
record_on_feature         -- The feature to enact when one-touch recording is turned on.
record_off_feature        -- The feature to enact when one-touch recording is turned off.
rtp_engine                -- Name of the RTP engine to use for channels created for this endpo
allow_transfer            -- Determines whether SIP REFER transfers are allowed for this endpo
sdp_owner                 -- String placed as the username portion of an SDP origin (o=) line.
sdp_session               -- String used for the SDP session (s=) line.
tos_audio                 -- DSCP TOS bits for audio streams
tos_video                 -- DSCP TOS bits for video streams
cos_audio                 -- Priority for audio streams
cos_video                 -- Priority for video streams
allow_subscribe           -- Determines if endpoint is allowed to initiate subscriptions with
sub_min_expiry            -- The minimum allowed expiry timefor subscriptions initiated by th
from_user                 -- Username to use in From header for requests to this endpoint.
mwi_from_user             -- Username to use in From header for unsolicited MWI NOTIFYs to thi
from_domain               -- Domain to user in From header for requests to this endpoint.
dtls_verify               -- Verify that the provided peer certificate is valid
dtls_rekey                -- Interval at which to renegotiate the TLS session and rekey the SR
dtls_cert_file            -- Path to certificate file to present to peer
dtls_private_key          -- Path to private key for certificate file
dtls_cipher               -- Cipher to use for DTLS negotiation
dtls_ca_file              -- Path to certificate authority certificate
dtls_ca_path              -- Path to a directory containing certificate authority certificates
dtls_setup                -- Whether we are willing to accept connections, connect to the othe
srtp_tag_32               -- Determines whether 32 byte tags should be used instead of 80 byte
set_var                   -- Variable set on a channel involving the endpoint.
message_context           -- Context to route incoming MESSAGE requests to.

localhost*CLI> config show help res_pjsip transport
transport: [category !~ /.?/] 
SIP Transport *Transports*
There are different transports and protocol derivatives supported by 're
s_pjsip'. They are in order of preference: UDP, TCP, and WebSocket (WS).
NOTE: Changes to transport configuration in pjsip.conf will only be effected
on a complete restart of Asterisk. A module reload will not suffice. 
async_operations          -- Number of simultaneous Asynchronous Operationsbind-- IP Address and optional port to bind to for this transport
ca_list_file              -- File containing a list of certificates to read(TLS ONLY)
cert_file                 -- Certificate filefor endpoint (TLS ONLY)
cipher                    -- Preferred Cryptography Cipher (TLS ONLY)
domain                    -- Domain the transport comes from
external_media_address    -- External IP address to use in RTP handling
external_signaling_address -- External address for SIP signalling
external_signaling_port   -- External port for SIP signalling
method                    -- Method of SSL transport (TLS ONLY)
local_net                 -- Network to consider local(used for NAT purposes).
password                  -- Password required for transport
priv_key_file             -- Private key file(TLS ONLY)
protocol                  -- Protocol to use for SIP traffic
require_client_cert       -- Require client certificate (TLS ONLY)type-- Must be of type'transport'.
verify_client             -- Require verification of client certificate (TLS ONLY)
verify_server             -- Require verification of server certificate (TLS ONLY)
tos                       -- Enable TOS for the signalling sent over this transport
cos                       -- Enable COS for the signalling sent over this transport

localhost*CLI> config show help res_pjsip auth
auth: [category !~ /.?/] 
Authentication type 
 Authentication objects hold the authentication information for use by other
objects such as'endpoints' or 'registrations'. This also allows for multiple
objects to use a single auth object. See the 'auth_type' config option for
password style choices. 
auth_type                    -- Authentication type
nonce_lifetime            -- Lifetime of a nonce associated with this authentication config.
md5_cred                    -- MD5 Hash used for authentication.
password                     -- PlainText password used for authentication.
realm                          -- SIP realm for endpointtype-- Must be 'auth'
username                    -- Username to use for account

localhost*CLI> config show help res_pjsip aor
aor: [category !~ /.?/] 
The configuration for a location of an endpoint 
 An AoR is what allows Asterisk to contact an endpoint via res_pjsip. If no
AoRs are specified, an endpoint will not be reachable by Asterisk. Beyond
that, an AoR has other uses within Asterisk, such as inbound registration. 
 An 'AoR' is a way to allow dialing a group of 'Contacts' that all use the
 same 'endpoint'for calls.
 This can be used as another way of grouping a list of contacts to dial
 rather than specifing them each directly when dialing via the dialplan. This
 must be used in conjuction with the 'PJSIP_DIAL_CONTACTS'.
 Registrations: For Asterisk to match an inbound registration to an endpoint,
 the AoR object name must match the user portion of the SIP URI in the "To:"
 header of the inbound SIP registration. That will usually be equivalent to
 the "user name"setin your hard or soft phones configuration. 
contact                   -- Permanent contacts assigned to AoR
default_expiration        -- Default expiration timein seconds for contacts that are dynamica
mailboxes                 -- Allow subscriptions for the specified mailbox(es)
maximum_expiration        -- Maximum time to keep an AoR
max_contacts              -- Maximum number of contacts that can bind to an AoR
minimum_expiration        -- Minimum keep alive timefor an AoR
remove_existing           -- Determines whether new contacts replace existing ones.type-- Must be of type'aor'.
qualify_frequency         -- Interval at which to qualify an AoR
authenticate_qualify      -- Authenticates a qualify request if needed
outbound_proxy            -- Outbound proxy used when sending OPTIONS request
support_path              -- Enables Path support for REGISTER requests and Route support for

localhost*CLI> config show help res_pjsip_outbound_registration  registration
registration: [category !~ /.?/] 
The configuration for outbound registration 
 Registration is *COMPLETELY* separate from the rest of 'pjsip.conf'. A minimal
configuration consists of setting a 'server_uri'        and a 'client_uri'. 
auth_rejection_permanent  -- Determines whether failed authentication challenges are treated a
client_uri                -- Client SIP URI used when attempting outbound registration
contact_user              -- Contact User to use in request
expiration                -- Expiration timefor registrations in seconds
max_retries               -- Maximum number of registration attempts.
outbound_auth             -- Authentication object to be used for outbound registrations.
outbound_proxy            -- Outbound Proxy used to send registrations
retry_interval            -- Interval in seconds between retries if outbound registration is u
forbidden_retry_interval  -- Interval used when receiving a 403 Forbidden response.
server_uri                -- SIP URI of the server to register against
transport                 -- Transport used for outbound authenticationtype-- Must be of type'registration'.
support_path              -- Enables Path support for outbound REGISTER requests  

localhost*CLI> config show help res_pjsip domain_alias
domain_alias: [category !~ /.?/] 
Domain Alias 
 Signifies that a domain is an alias. If the domain on a session is not found
to match an AoR then this object is used to see if we have an aliasfor the
AoR to which the endpoint is binding. This objects name as defined in
configuration should be the domain alias and a config option is provided to
specify the domain to be aliased. type-- Must be of type'domain_alias'.
domain                    -- Domain to be aliased

localhost*CLI> config show help res_pjsip_acl  acl
acl: [category !~ /.?/] 
Access Control List 
acl                       -- List of IP ACL section names in acl.conf
contact_acl               -- List of Contact ACL section names in acl.conf
contact_deny              -- List of Contact header addresses to deny
contact_permit            -- List of Contact header addresses to permit
deny                      -- List of IP addresses to deny access from
permit                    -- List of IP addresses to permit access fromtype-- Must be of type'acl'.

localhost*CLI> config show help res_pjsip_endpoint_identifier_ip identify
identify: [category !~ /.?/]

Identifies endpoints via source IP address

endpoint                  -- Name of Endpoint
match                     -- IP addresses or networks to match against
type                      -- Must be of type 'identify'.

localhost*CLI> config show help res_pjsip contact
contact: [category !~ /.?/]

A way of creating an aliased name to a SIP URI

 Contacts are a way to hide SIP URIs from the dialplan directly. They are
also used to make a group of contactable parties when in use with 'AoR' lists.


type                      -- Must be of type 'contact'.
uri                       -- SIP URI to contact peer
expiration_time           -- Time to keep alive a contact
qualify_frequency         -- Interval at which to qualify a contact
outbound_proxy            -- Outbound proxy used when sending OPTIONS request
path                      -- Stored Path vector for use in Route headers on outgoing requests.