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CS Interface Configuration
SN#
configure
SN(cfg)#
context cs
SN(ctx-cs)[switch]#
interface h323 IPBackbone_1
SN(if-h323)[IPBackb~]#
routing dest-interface PBX_1
SN(if-h323)[IPBackb~]#
exit
SN(ctx-cs)[switch]#
interface h323 IPBackbone_2
SN(if-h323)[IPBackb~]#
routing dest-interface PBX_2
SN(if-h323)[IPBackb~]#
exit
SN(ctx-cs)[switch]#
interface pstn PBX_1
SN(if-pstn)[PBX_1]#
routing dest-interface IPBackbone_
1
SN(if-pstn)[PBX_1]#
exit
SN(ctx-cs)[switch]#
interface pstn PBX_2
SN(if-pstn)[PBX_2]#
routing dest-interface IPBackbone_2
SN(if-pstn)[PBX_2]#
exit
SN(ctx-cs)[switch]#
Next we configure the remote IP address for direct call signaling and specify the port addresses:
SN(ctx-cs)[switch]#
interface h323 IPBackbone_1
SN(if-h323)[IPBackb~]#
remoteip 172.21.16.1
SN(if-h323)[IPBackb~]#
portaddress 1
SN(if-h323)[IPBackb~]#
exit
SN(ctx-cs)[switch]#
SN(ctx-cs)[switch]#
interface h323 IPBackbone_2
SN(if-h323)[IPBackb~]#
remoteip 172.21.16.1
SN(if-h323)[IPBackb~]#
portaddress 2
SN(if-h323)[IPBackb~]#
exit
SN(ctx-cs)[switch]#
Because we use H.323 we have to disable the registration authentication service (RAS) and enable
Q.931 tunneling. Furthermore we enable fast connect and enable the H.323 gateway with the
command 'no shutdown'. These two commands are described in more detail in Chapter 25,
“Gateway Configuration”.
SN>
enable
SN#
configure
SN(cfg)#
gateway h323 h323
SN(gw-h323)[h323]#
no ras
SN(gw-h323)[h323]#
q931-tunneling
SN(gw-h323)[h323]#
faststart
SN(gw-h323)[h323]#
no shutdown
SN(gw-h323)[h323]#
exit
SN(cfg)#
Next we bind the PSTN interfaces "PBX_1" and "PBX_2" to the PSTN ports:
SN(ctx-cs)[switch]#
interface pstn PBX_1
SN(if-pstn)[PBX_1]#
bind port 0 0
SN(if-pstn)[PBX_1]#
exit
SN(ctx-cs)[switch]#
interface pstn PBX_2
SN(if-pstn)[PBX_1]#
bind port 0 1
SN(if-pstn)[PBX_1]#
exit
SN(ctx-cs)[switch]#
In addition you have to configure the ISDN port and the voice Codec used. Refer to Chapter 24,
“ISDN Port Configuration” or Chapter 25, “Gateway Configuration” for more information on how to
configure these components.
Software Configuration Guide, Revision 1.03