Zeck Audio STAC Force180 Guia de Instalação descarregar pdf (Página 10)

Rev. 1.00 12-02-13 10/41

H.323 offers the capability to suspend a call by sending an empty Terminal Capability Set (TCS)

and to resume it again by sending a valid TCS. On the SmartNode the resuming procedure was

broken, it didn‟t respond with its own TCS on receiving the peer‟s „Resume TCS‟.

Now the capability exchange as well as the Master Slave Determination is executed and the

feature works as expected.

11955 Dial tone played a second time

On SN4630 and SN4650 devices the dial tone was played a second time. This happened when

an ISDN phone was connected to the SmartNode and the digit collection was done with a

routing table in SmartWare. When the user picks up the phone the dial tone was played the first

time to indicate that a number can be dialed. The tone stopped playing after the first dialed digit.

But after completion of the number the dial tone was played again. This has been corrected and

the dial tone is played only the first time.

11981 G.S line rate negotiation fails at high distance

G.S line rate negotiation between the SmartNode and the CO may fail at high distance under

some circumstances. This can be fixed by enabling the power backoff on the G.S interface. A

new command has been implemented to configure the power backoff on the G.S interface. By

default this value is set to 0dB (i.e. no power backoff) but it can be reduced down to -12dB

depending on the distance and the CO type. This feature requires at least version G13 of the

G.S card interface.

Refer to the New configuration commands section for further details.

11989 FXO dial-tone detection

On the SN4660/70 platforms the „interface fxo‟ command „dial-after dial-tone‟ didn‟t have any

effect due to missing dial-tone detection. It could be worked around by configuring „dial-after

timeout‟ or by enabling any other call-progress tone detection feature like „disconnect-signal

busy-tone‟.

12019 Invalid SDP offer in SIP provisional response

If the SmartNode receives an SIP INVITE without SDP information, forwards the call to an ISDN

interface and later receives an ALERTING message with inband info from the ISDN peer, it

would then create an SDP offer in the 180 RINGING provisional response. This works but goes

against the SIP standard. Such a scenario later failed in the call setup process when the

SmartNode finally realized that this was going against the standard‟s definition. This has now

been corrected and SmartWare does no longer create any SDP offer in a provisional response

in such a scenario.

Build Series 2012-05-23

10983 DTMF caller ID transmission on FXS

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Zeck Audio STAC Force180 Guia de Instalação Página 10