> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/parameters.md).

# Parameter reference

Configuration parameters of TelcoBridges systems, grouped by subsystem. Each subsystem page lists its parameters with their meaning and allowed values.

* [Advanced Configuration Parameters](/telecom-references/parameter-reference/advanced-configuration-parameters.md)
* [CDR and billing parameters](/telecom-references/parameter-reference/cdr.md)
* [Fax and modem parameters](/telecom-references/parameter-reference/fax-modem.md)
* [H.248 / MGCP parameters](/telecom-references/parameter-reference/h248-mgcp.md)
* [Hardware parameters](/telecom-references/parameter-reference/hardware.md)
* [IP network parameters](/telecom-references/parameter-reference/ip-network.md)
* [ISDN parameters](/telecom-references/parameter-reference/isdn.md)
* [ISUP parameters](/telecom-references/parameter-reference/isup.md)
* [M3UA / SIGTRAN parameters](/telecom-references/parameter-reference/m3ua.md)
* [MTP2 parameters](/telecom-references/parameter-reference/mtp2.md)
* [MTP3 parameters](/telecom-references/parameter-reference/mtp3.md)
* [Other parameters parameters](/telecom-references/parameter-reference/other.md)
* [Routing and numbering parameters](/telecom-references/parameter-reference/routing.md)
* [RTP and media parameters](/telecom-references/parameter-reference/rtp-media.md)
* [SCCP parameters](/telecom-references/parameter-reference/sccp.md)
* [Security parameters](/telecom-references/parameter-reference/security.md)
* [SIP parameters](/telecom-references/parameter-reference/sip.md)
* [SNMP parameters](/telecom-references/parameter-reference/snmp.md)
* [System parameters](/telecom-references/parameter-reference/system.md)
* [TDM and lines parameters](/telecom-references/parameter-reference/tdm.md)
* [Transcoding parameters](/telecom-references/parameter-reference/transcoding.md)
* [Cache Expire Time](/telecom-references/parameter-reference/cache-expire-time.md)
* [Fax Modem Pass-Through Parameters: Support V.152 VBD](/telecom-references/parameter-reference/fax-modem-pass-through-parameters-support-v-152-vbd.md)
* [gateway](/telecom-references/parameter-reference/gateway.md)
* [Jitter Buffer: Maximum Depth](/telecom-references/parameter-reference/jitter-buffer-maximum-depth.md)
* [LNP Options: Incoming Calls LNP Mode](/telecom-references/parameter-reference/lnp-options-incoming-calls-lnp-mode.md)
* [LNP Options: Outgoing Calls LNP Mode](/telecom-references/parameter-reference/lnp-options-outgoing-calls-lnp-mode.md)
* [Nature of Address Indicator](/telecom-references/parameter-reference/nature-of-address-indicator.md)
* [Packet Network: Type of Service](/telecom-references/parameter-reference/packet-network-type-of-service.md)
* [Point Code](/telecom-references/parameter-reference/point-code.md)
* [Port Min](/telecom-references/parameter-reference/port-min.md)
* [Server DNS Port](/telecom-references/parameter-reference/server-dns-port.md)
* [SIP : Max Forwards header handling](/telecom-references/parameter-reference/sip-max-forwards-header-handling.md)
* [SIP: Don't forward 183 progress](/telecom-references/parameter-reference/sip-dont-forward-183-progress.md)
* [SIP: User-to-User encoding](/telecom-references/parameter-reference/sip-user-to-user-encoding.md)
* [Sub-System Number](/telecom-references/parameter-reference/sub-system-number.md)
* [TOS to use in IP header](/telecom-references/parameter-reference/tos-to-use-in-ip-header.md)
* [Untagged](/telecom-references/parameter-reference/untagged.md)


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