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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
get_66 1 param → 200403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions
Post 15
post_15 1 param body → 403400201
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/available-internal-outgoings
Get 64
get_64 2 params → 200403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/call-forwards
Get 78
get_78 2 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/call-forwards
Put 24
put_24 2 params body → 404204400403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-globals
Get 70
get_70 2 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-globals
Put 18
put_18 2 params body → 404204400403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-globals/{type}
Get 71
get_71 3 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-globals/{type}
Put 19
put_19 3 params body → 404204400403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-globals/{type}/available
Get available 1
getAvailable_1 3 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules
Get 74
get_74 3 params → 200403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules
Post 18
post_18 3 params body → 403400201
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules/{sourceId}/{type}/available
Get available 2
getAvailable_2 5 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/devices
Get 60
get_60 2 params → 200403404
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/devices
Post 13
post_13 2 params body → 403400201
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/function-keys/available-targets
Get 80
get_80 2 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/function-keys/{keyNumber}
Put 25
put_25 3 params body → 404204400403
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/function-keys/{keyNumber}
Delete 19
delete_19 3 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/function-keys/{keyNumber}
Get 82
get_82 3 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/inbound-trunk-numbers
Get 68
get_68 2 params → 200403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/inbound-trunk-numbers
Post 16
post_16 2 params body → 403400201
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/function-keys/available-targets
Get 79
get_79 1 param → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}
Put 17
put_17 2 params body → 404204400403
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}
Delete 15
delete_15 2 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}
Get 67
get_67 2 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/outbound-trunk-numbers/available-trunks
Get available trunks
getAvailableTrunks 2 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules/{sourceId}
Put 21
put_21 4 params body → 404204400403
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules/{sourceId}
Delete 18
delete_18 4 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules/{sourceId}
Get 75
get_75 4 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/voice-mail
Get 87
get_87 2 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/voice-mail
Put 26
put_26 2 params body → 404204400403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/voice-mail/announcements
Get 86
get_86 2 params → 200403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{specification}/available
Get 65
get_65 2 params → 200403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/call-forwards/{type}/available
Get available
getAvailable 3 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles
Get 72
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
get_62 1 param → 200403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/available-devices
Get 58
get_58 1 param → 200403404
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/inbound-trunk-numbers/{didNumber}
Delete 16
delete_16 3 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/inbound-trunk-numbers/{didNumber}
Get 69
get_69 3 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/lync
Get 83
get_83 2 params → 200403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/lync
Post 20
post_20 2 params body → 403400201
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/lync/{lyncOptionId}
Delete 20
delete_20 3 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/lync/{lyncOptionId}
Get 84
get_84 3 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/outbound-trunk-numbers
Get outbound trunk numbers with page
getOutboundTrunkNumbersWithPage 2 params → 200403404
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/outbound-trunk-numbers
Post outbound trunk numbers
postOutboundTrunkNumbers 2 params body → 403400201
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/outbound-trunk-numbers/{outboundTrunkNumberId}
Delete outbound trunk number
deleteOutboundTrunkNumber 3 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/outbound-trunk-numbers/{outboundTrunkNumberId}
Get outbound trunk numbers
getOutboundTrunkNumbers 3 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/skills
Get 85
get_85 2 params → 200403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/skills
Post 21
post_21 2 params body → 403400201
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/skills/login-status
Get 92
get_92 2 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/skills/login-status
Put 28
put_28 2 params body → 404204400403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/voice-mail/announcements/{announcementType}
Post 22
post_22 3 params body → 403400201
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/voice-mail/announcements/{announcementType}
Delete 21
delete_21 3 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/voice-mail/announcements/{announcementType}
Get content 1
getContent_1 3 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/available-internal-outgoings
Get 5
get_5 1 param → 200403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/available-cti-info/{ctiInfoName}
Get 63
get_63 2 params → 200403404
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/function-keys
Get 81
get_81 2 params → 200403
POST
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/function-keys
Post 19
post_19 2 params body → 403400201
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/call-forwards/{type}
Get 77
get_77 3 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/call-forwards/{type}
Put 23
put_23 3 params body → 404204400403
DELETE
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/devices/{uniqueIdentifier}
Delete 13
delete_13 3 params → 404204403
GET
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules/{sourceId}/{type}
Get 76
get_76 5 params → 200403404
PUT
/tenants/{participantExternalIdentifier}/targets/phone-extensions/{extensionNumber}/callforward-profiles/{profileNumber}/rules/{sourceId}/{type}
Put 22
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
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), PhoneExtensionLinks (8 properties). Each schema is shown below with its type and property counts.

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