# How do I configure the AVM Gateway 5188 for sipgate trunking?

Below is the relevant information for configuring the AVM Gateway 4588. Open the gateway's web menu.

* Internet Telephony ➔ DDI Account:
* Internet Phone Use: enable
* Internet Telephony Provider: "other providers"
* Internet Phone number: Use your sipgate phone number - replace the first "0" with "44" (E.164 number format)
* Username: your SIP ID
* Password: your SIP password
* Confirm Password: your SIP password
* Registrar: sipconnect.sipgate.co.uk
* Proxy Server: sipconnect.sipgate.co.uk
* STUN-Server: leave blank
* Internet Call Number for the Registration Use: not enabled
* Serial Number: Use your sipgate phone number- replace the first "0" with "44" (E.164 number format)
* Central Phone Extention: can be decided by you
* Length of Extension: sipgate trunking supports 1-3 digit extensions
* Extension: in the "P-Preferred-Identity" format
* DTMF Transmission: Automatic, adjust manually for faults
* CLIR: CLIR via RFC 3325 (ID)
* Do not automatically register provider: not enabled
* Customise number format:
* 00: not enabled
* 0: not enabled
* Suffix for Internet Numbers: leave blank
* Provider supports the international number format: enable

{% hint style="info" %}
**Note:** Outgoing calls will be and must be sent in the E.164 Format Activate internet router port forwarding for VoIP: enabled
{% endhint %}