---
title: "update least cost routing routes and carrier set entries"
method: PUT
path: "/Lcrs/{LcrSid}/Routes"
tags: ["Call Routing"]
---

# update least cost routing routes and carrier set entries

`PUT /Lcrs/{LcrSid}/Routes`

## Request body

- LcrRouteAndCarrierEntries[]
  - `lcr_sid` string, required
  - `regex` string, required — out going call Phone number regex
  - `priority` integer, required
  - `description` string
  - `lcr_carrier_set_entries` LcrCarrierSetEntry[]
    - `workload` integer — traffic distribution value
    - `lcr_route_sid` string, required
    - `voip_carrier_sid` string, required
    - `priority` integer, required

## Response `204`

least cost routing ruoutes and carrier entries updated

## Other responses

- `400` — bad request
- `404` — least cost routing not found
- `500` — system error

---

[API](https://skmtc.net/jambonz/apis/jambonz-api.md) · [All operations](https://skmtc.net/jambonz/apis/jambonz-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/jambonz/jambonz-api/revisions/56f317145d23/schema)