> ## Documentation Index > Fetch the complete documentation index at: https://docs.vobiz.ai/llms.txt > Use this file to discover all available pages before exploring further. # Campaign Agents - Reusable Webhook Configs > Create reusable Campaign Agents in the Vobiz Console - shared answer/hangup webhook configurations used by one or more outbound campaigns. Walkthrough of the agents list, the New Agent form, and Static SIP Headers. A **Campaign Agent** is a reusable bundle of webhook configuration - the Answer URL, the Hangup URL, and any static SIP headers - that one or more campaigns share. Create the agent once and you can launch a hundred campaigns against it without re‑typing those URLs. ```text URL theme={null} https://console.vobiz.ai/app/campaigns/agents ``` ## The Agents list Campaign Agents page subtitled Reusable webhook configurations shared across campaigns, showing two agent cards (API Test Agent 2 and test) each listing the Answer URL with POST method badge, the Hangup URL or Not configured, and Static SIP Headers (None for both) Each Agent card shows: | Section | What it contains | | ---------------------- | ----------------------------------------------------------------------------------------------------- | | **Header** | Friendly name (e.g. `API Test Agent 2`) and the creation date. | | **Answer** | The URL Vobiz POSTs (or GETs) when a campaign call connects - your server's IVR / AI flow lives here. | | **Hangup** | Where Vobiz POSTs the final call result. Shown as *Not configured* if you skipped it. | | **Static SIP Headers** | Custom headers Vobiz attaches to every campaign call placed through this agent (none by default). | The pencil/trash icons on each card let you edit or delete the Agent. Deleting an Agent only succeeds if no active campaigns reference it - pause those campaigns first. ## Create a new Agent Click **+ New Agent** in the top‑right. New Agent side panel with fields for Name (filled in with Appointment Reminder Agent), Answer URL with POST method dropdown, Hangup URL with POST method dropdown, and a Static SIP Headers section with an Add header link, plus Cancel and orange Create Agent buttons at the bottom | Field | Required | Notes | | ---------------------- | -------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **Name** | ✅ | Something descriptive - *"Appointment Reminder Agent"*, *"Q4 Survey Bot"*. You'll pick this from a dropdown when creating campaigns. | | **Answer URL** | ✅ | Method (`POST` recommended) + URL. Vobiz hits this when a campaign call is answered. Same XML conventions as a normal [XML application](/platform/voice/applications). | | **Hangup URL** | – | Optional. Vobiz POSTs the call result here when the call ends. Recommended in production - most analytics depend on it. | | **Static SIP Headers** | – | Click **+ Add header** to attach key/value pairs that Vobiz sends with every outgoing INVITE. Use for tagging traffic (`X-Campaign-Source: q4-reminders`) or routing hints. | Click **Create Agent**. ## Static SIP Headers - when to use them The headers you add here are attached to every INVITE Vobiz sends on behalf of campaigns that use this agent. Common patterns: * **`X-Campaign-Source`** - tag for your downstream PBX or CRM to know the source. * **`P-Asserted-Identity`** - carrier‑specific identity routing (check with your trunk provider first). * **`X-RingTime`** - pass a max ring time hint to the receiving system. Static headers apply to **every** call from every campaign that uses this agent. If you need per‑call values, set them in your Answer URL XML response with `` instead. ## Use the Agent in a campaign Open [Campaigns → + New Campaign](/platform/campaigns/list) - the **Agent** dropdown lists every agent on your account. Pick the one you just made and the rest of the form takes over from there. ## What's next Wire this agent into a real outbound run. The XML your Answer URL should return.