> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getsmartalex.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Avaya IP Office

> Connect Avaya IP Office to SmartAlex via SIP trunk. Enterprise on-premise PBX setup.

<Info>
  **Audience**: Avaya IP Office admin or certified reseller. **Time**: 20 to 30 minutes. **Releases**: 10.x and 11.x (current).
</Info>

## Prerequisites

* Avaya IP Office admin / Manager access
* SIP Trunk Channels licence on the IP Office
* Outbound UDP 5060 allowed on the edge firewall
* PBX public IP or FQDN

## Step 1: create trunk in SmartAlex

SIP Trunk wizard, pick **Other**. Avaya doesn't have a dedicated preset; Generic works. Use digest auth. Save credentials.

## Step 2: add the SIP trunk in IP Office Manager

<Steps>
  <Step title="Open IP Office Manager">
    Connect to the IP Office. Navigate to **Line** then right-click, then **New**, then **SIP Line**.
  </Step>

  <Step title="SIP Line tab">
    * **ITSP Domain Name**: `sip.voice.getsmartalex.com`
    * **Send Caller ID**: Diversion Header
    * **Country Code**: (your country code, e.g., 27 for SA)
    * **Incoming Supervised REFER**: Auto
    * **Outgoing Supervised REFER**: Auto
    * **Send 302 Moved Temporarily**: Off
  </Step>

  <Step title="Transport tab">
    * **ITSP Proxy Address**: `sip.voice.getsmartalex.com`
    * **Network Configuration**: Layer 4 Protocol = UDP, Port = 5060
    * **Use Network Topology Info**: System
    * **Calls Route via Registrar**: checked
  </Step>

  <Step title="Call Details tab">
    * Add a new SIP URI.
    * **Incoming Group**: 99 (or your preferred group)
    * **Outgoing Group**: 99
    * **Max Sessions**: match the SmartAlex concurrent-call limit
  </Step>

  <Step title="VoIP tab">
    * **Codec Selection**: Custom
    * **Selected Codecs**: G.711 ULAW 64K, G.711 ALAW 64K
    * **Fax Transport**: None
    * **DTMF Support**: RFC 2833
    * **Media Security**: Disabled (or Preferred for SRTP if configured)
  </Step>

  <Step title="Save and verify">
    Save configuration to IP Office. Check SIP trunk status in System Status: should show "InService".
  </Step>
</Steps>

## Step 3: short codes (outbound, optional)

Short Codes, add a code like `9N` that dials `N` through Line Group 99 (the SmartAlex trunk group).

## Step 4: inbound call route

Incoming Call Route, add a route: Bearer Capability Any Voice, Incoming Line Group 99, Destination to your desired hunt group or extension that will hand off to SmartAlex (typically the main auto-attendant destination you want to replace).

For a SmartAlex-provisioned DID, you don't need an inbound route on Avaya.

## Step 5: extensions and agent

Populate extensions in SmartAlex. Link agent.

## Step 6: test

Dial. Transfer.

## Avaya-specific notes

* **Licensing**: each SIP trunk channel needs a licence. Verify `sysmon` shows available channels.
* **SBC requirement**: Avaya Session Border Controller (SBCE) is recommended in enterprise deployments for SIP-side security. SmartAlex works with or without SBCE.
* **Caller ID Name (CNAM)**: IP Office can substitute display names via the Calling Line Directory; this is independent of the SIP transfer mechanism.
* **Release 11**: newer releases handle REFER more cleanly. If on an older release (10.0 or earlier), upgrade before deployment.
* **Session Border Controller for Enterprise (SBCE)**: if you terminate SIP on SBCE, configure the trunk on SBCE's side with identical parameters, then point IP Office at SBCE.

## Next steps

<CardGroup cols={2}>
  <Card title="Mitel" href="/telephony/mitel">
    Alternative enterprise PBX.
  </Card>

  <Card title="Troubleshooting" href="/telephony/troubleshooting">
    Error reference.
  </Card>
</CardGroup>