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Nfon Customer Extensions API

The Customer Extensions API from Nfon — 38 operation(s) for customer extensions.

Nfon Customer Extensions API is one of 52 APIs that Nfon publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Customer Extensions. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 67 operations across 38 paths, and defines 61 schemas. It is described by OpenAPI 3.2.0, at version 2026.07.20.

Requests are made against a single base URL, /configuration/v1.

67 operations 38 paths 61 schemas 9 DELETE37 GET10 POST11 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2026.07.20
Base URL
https://api.nfon.net/configuration/v1
Authentication
HTTP Bearer
Resource Areas
1

Authentication & Security 1

Nfon Customer Extensions API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (JWT) (jwt).

Paths & Operations 67

Across 38 paths, the API surfaces 67 operations — 9 DELETE, 37 GET, 10 POST, 11 PUT. Each is listed below with its method, path, parameters, and response codes.

Customer Extensions 67
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions
get_66 1 param → 200403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions
post_15 1 param body → 403400201
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/available-internal-outgoings
get_64 2 params → 200403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/call-forwards
get_78 2 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/call-forwards
put_24 2 params body → 404204400403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-globals
get_70 2 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-globals
put_18 2 params body → 404204400403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-globals/{type}
get_71 3 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-globals/{type}
put_19 3 params body → 404204400403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-globals/{type}/available
getAvailable_1 3 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules
get_74 3 params → 200403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules
post_18 3 params body → 403400201
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules/{sourceId}/{type}/available
getAvailable_2 5 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/devices
get_60 2 params → 200403404
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/devices
post_13 2 params body → 403400201
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/function-keys/available-targets
get_80 2 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/function-keys/{keyNumber}
put_25 3 params body → 404204400403
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/function-keys/{keyNumber}
delete_19 3 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/function-keys/{keyNumber}
get_82 3 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/inbound-trunk-numbers
get_68 2 params → 200403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/inbound-trunk-numbers
post_16 2 params body → 403400201
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/function-keys/available-targets
get_79 1 param → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}
put_17 2 params body → 404204400403
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}
delete_15 2 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}
get_67 2 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/outbound-trunk-numbers/available-trunks
getAvailableTrunks 2 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules/{sourceId}
put_21 4 params body → 404204400403
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules/{sourceId}
delete_18 4 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules/{sourceId}
get_75 4 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/voice-mail
get_87 2 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/voice-mail
put_26 2 params body → 404204400403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/voice-mail/announcements
get_86 2 params → 200403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{specification}/available
get_65 2 params → 200403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/call-forwards/{type}/available
getAvailable 3 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles
get_72 2 params → 200403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles
Create a callforward profile
post_17 2 params body → 400201
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/available-cti-info
get_62 1 param → 200403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/available-devices
get_58 1 param → 200403404
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/inbound-trunk-numbers/{didNumber}
delete_16 3 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/inbound-trunk-numbers/{didNumber}
get_69 3 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/lync
get_83 2 params → 200403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/lync
post_20 2 params body → 403400201
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/lync/{lyncOptionId}
delete_20 3 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/lync/{lyncOptionId}
get_84 3 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/outbound-trunk-numbers
getOutboundTrunkNumbersWithPage 2 params → 200403404
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/outbound-trunk-numbers
postOutboundTrunkNumbers 2 params body → 403400201
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/outbound-trunk-numbers/{outboundTrunkNumberId}
deleteOutboundTrunkNumber 3 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/outbound-trunk-numbers/{outboundTrunkNumberId}
getOutboundTrunkNumbers 3 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/skills
get_85 2 params → 200403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/skills
post_21 2 params body → 403400201
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/skills/login-status
get_92 2 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/skills/login-status
put_28 2 params body → 404204400403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/voice-mail/announcements/{announcementType}
post_22 3 params body → 403400201
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/voice-mail/announcements/{announcementType}
delete_21 3 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/voice-mail/announcements/{announcementType}
getContent_1 3 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/available-internal-outgoings
get_5 1 param → 200403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/available-cti-info/{ctiInfoName}
get_63 2 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/function-keys
get_81 2 params → 200403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/function-keys
post_19 2 params body → 403400201
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/call-forwards/{type}
get_77 3 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/call-forwards/{type}
put_23 3 params body → 404204400403
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/devices/{uniqueIdentifier}
delete_13 3 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules/{sourceId}/{type}
get_76 5 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules/{sourceId}/{type}
put_22 5 params body → 404204400403
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}
Update a callforward profile
put_20 3 params body → 404204400
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}
Delete a callforward profile
delete_17 3 params → 404204400
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}
get_73 3 params → 200403404

Schemas 61

The contract defines 61 schemas that model the data the API accepts and returns. The most detailed are PhoneExtensionPUTData (26 properties), PhoneExtensionPOSTData (26 properties), VoicemailData (15 properties), PhoneExtensionPUTLinks (8 properties). Each schema is shown below with its type and property counts.

PhoneExtensionDevicesPOSTRequest
object
4 properties
PhoneExtensionDevicesPOSTLinks
object
InboundTrunkNumberRequest
object
4 properties
VoicemailRequest
object
4 properties
NfonApiCollectionResponseNonPage
object
Non-paginated collection response envelope
3 properties
CallForwardGlobalsReferenceRequest
object
4 properties
PhoneExtensionPOSTData
object
26 properties
CallForwardGlobalsPUTRequest
object
4 properties
PhoneExtensionCallForwardsPUTRequest
object
4 properties
CallForwardRulesPOSTRequest
object
4 properties
CallForwardRulePUTRequest
object
4 properties
FunctionKeyPUTRequest
object
4 properties
CFRulesPOSTData
object
5 properties
VoicemailData
object
15 properties
OutboundTrunkNumberData
object
PhoneExtensionCallForwardData
object
3 properties
Links
object
Related resource links
Integer
object
Subscribers soft limit
6 properties
CallForwardGlobalsReferenceData
object
3 properties
LoginStatusData
object
FunctionKeyPUTData
object
3 properties
PhoneExtensionSkillCollectionRequest
object
4 properties
FunctionKeyPUTLinks
object
1 property
CallForwardProfilesPOSTRequest
object
4 properties
PhoneExtensionPOSTRequest
object
4 properties
PhoneExtensionSkillCollectionLinks
object
1 property
CollectionLinks
object
Pagination links for collection responses
4 properties
PhoneExtensionCallForwardLinks
object
2 properties
NoData
object
PhoneExtensionPUTData
object
26 properties
PhoneExtensionSkillCollectionData
object
4 properties
NoLinks
object
CallForwardProfilePUTRequest
object
4 properties
LyncOptionLinks
object
3 properties
String
object
Link to the last page
6 properties
CallForwardProfilePUTData
object
3 properties
CallForwardProfilesPOSTData
object
3 properties
CallForwardGlobalsReferenceLinks
object
2 properties
FunctionKeyPOSTData
object
4 properties
FunctionKeyPOSTRequest
object
4 properties
Boolean
object
6 properties
OutboundTrunkNumberLinks
object
CallForwardGlobalsPUTData
object
2 properties
InboundTrunkNumberLinks
object
1 property
PhoneExtensionPUTRequest
object
4 properties
NfonApiCollectionResponse
object
Collection response envelope
LoginStatusRequest
object
4 properties
NfonApiCollectionResponsePage
object
Paginated collection response envelope
6 properties
Enum
object
6 properties
FunctionKeyPOSTLinks
object
1 property
CFRulesPOSTLinks
object
5 properties
LyncOptionRequest
object
4 properties
Date
object
6 properties
NfonApiResponse
object
Standard API response envelope for a single resource
3 properties
InboundTrunkNumberData
object
1 property
OutboundTrunkNumberRequest
object
4 properties
PhoneExtensionLinks
object
8 properties
CallForwardRulePUTData
object
5 properties
PhoneExtensionPUTLinks
object
8 properties
PhoneExtensionCallForwardsPUTData
object
3 properties
CallForwardRequest
object
4 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

nfon-customer-extensions-api-openapi.yml Raw ↑

Other APIs Nfon publishes across the network.

NFON Service Portal API (legacy)
Nfon Accounts API
Nfon address API
Nfon authentication API
Nfon Blacklist Profiles API
Nfon clip-screened-prefixes API
Nfon Contract Types API
Nfon Customer Announcements API
Nfon Customer Conference API
Nfon Customer Contracts API
Nfon Customer Device Types API
Nfon Customer Devices API
Where this information came from

This is an independent, third-party profile of Nfon Customer Extensions API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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