Patton electronic SmartNode 4110 Series manual Configuring the transparent-clearmode codec

SmartWare Software Configuration Guide47 • VoIP profile configuration

Mode: Profile VoIP

Step	Command	Purpose
1	node(pf-voip)[name]#codec 1 g729 tx-	Inserts codec g729 at the first position of the list
	length 30 rx-length 30 silence-	(most preferred codec). The parameters are the
	suppression	same previously described.
		If the codec g729 had yet existed in the list, it is
		moved to the first position of the list, adopting the
		entered parameter values.

Configuring the transparent-clearmode codec

To be compatible with RFC4040, transparent-clearmode was made available as a codec in the voip profile. The codec can be used if exclusively packetisation and no coding/decoding is needed.

Mode: configure/profile voip

Step	Command	Purpose
1	[name](pf-voip)[profile]#[no] codec transpar-	Allows to use the codec transparent-
	ent-clearmode	clearmode.

Configuring the Cisco versions of the G.726 codecs

The Cisco versions of codecs are listed in the previous section as separate codecs with their name ending in – cisco. SmartWare supports four Cisco codec versions: g726-16k-cisco, g726-24k-cisco, g726-32k-cisco,

and transparent-cisco. Three of the codecs are variations of G.726, the fourth is transparent-cisco.

The transparent-ciscocodec provides full compatibility with Cisco’s clear-channelcodec used for transmission of Unrestricted Digital Information over a VoIP (SIP or H.323) network.

Cisco does not use the standard ITU G.726 version of G.726, instead it uses the ATM AAL2 version.

All supported Cisco codecs are available in profile voip.

Mode: VoIP name

Step Command Purpose

1node(pf-voip)[name]#codec { g726-16k-cisco To operate with Cisco’s G.726 codecs. g726-24k-cisco g726-32k-cisco … }

The next table indicates the method of configuring a Cisco-variant codec as the most preferred codec. This example sets the ‘transparent-cisco´ as number 1, the most preferred.

Mode: VoIP name

Step Command Purpose

1node(pf-voip)[name]#codec 1 transparent-cisco Configures transparent-cisco as the most preferred codec.

VoIP profile configuration task list 578