# Setting up SIP Provider with IP-Based Authentication and G.711/G.729 Codecs in LiveKit

**URL:** <https://community.livekit.io/t/setting-up-sip-provider-with-ip-based-authentication-and-g-711-g-729-codecs-in-livekit/499>\
**Category:** Telephony\
**Tags:** sip-other-provider, sip-trunking\
**Created:** [March 9, 2026, 9:19am UTC](https://community.livekit.io/t/setting-up-sip-provider-with-ip-based-authentication-and-g-711-g-729-codecs-in-livekit/499 "2026-03-09T09:19:49Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![darryncampbell](https://sea1.discourse-cdn.com/flex001/user_avatar/community.livekit.io/darryncampbell/32/20_2.png) [@darryncampbell](https://community.livekit.io/u/darryncampbell)\
**Post date:** [March 9, 2026, 10:36am UTC](https://community.livekit.io/t/setting-up-sip-provider-with-ip-based-authentication-and-g-711-g-729-codecs-in-livekit/499/2 "2026-03-09T10:36:46Z")

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Hi, which provider are you trying to set up?

> I couldn’t find an option for IP-based authentication.

We only support URI for SIP routing I’m afraid: [Can I use IP address instead of URI for SIP connections?](https://community.livekit.io/t/can-i-use-ip-address-instead-of-uri-for-sip-connections/215) .

> In the codec settings, G.711 and G.729 were not listed.

We support these codecs, you do not need to do any special configuration for these: [Audio codecs negotiation and support | LiveKit Documentation](https://docs.livekit.io/reference/telephony/codecs-negotiation/#supported-audio-codecs)

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_[View the full topic](https://community.livekit.io/t/setting-up-sip-provider-with-ip-based-authentication-and-g-711-g-729-codecs-in-livekit/499)._