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Configuring Support for PBX Signalling Protocols
This chapter describes how to configure support for PBX signalling formats such as Q.SIG and
transparent common channel signalling (CCS). Configuring support for these signalling protocols on
your router enables the router to interoperate with PBXs running these signalling protocols.
This chapter includes the following sections:
• Configuring Q.SIG PRI Signalling Support
� Configuring Transparent CCS on the Cisco MC3810
For a complete descript
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Configuring Support for PBX Signalling Protocols Configuring Q.SIG PRI Signalling Support – ECMA 142: Specification, Functional Model and Information Flows for Control Aspects of Circuit Mode Basic Services in Private Telecommunication Networks. – ECMA 141: Private Telecommunications Networks Inter-exchange Signalling Data Link Layer Protocol. – ECMA 165: Generic Functional Protocol for the Support of Supplementary Services. � Provides compatibility with H.323 for IP call setup and transport
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Configuring Support for PBX Signalling Protocols Configuring Q.SIG PRI Signalling Support � Q.SIG data calls are not supported. All calls with bearer capability indicating a nonvoice type (such as video telephony) are rejected. � The incoming POTS dial peer must have DID configured to prevent generation of a secondary dial tone to ensure end-to-end Q.SIG feature transparency. Q.SIG Prerequisite Tasks The following configuration tasks should be completed before you configure Q.SIG for VoIP: �
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Configuring Support for PBX Signalling Protocols Configuring Q.SIG PRI Signalling Support Command Purpose Router(config)# controller {T1 | E1} controller Step 2 Enters controller configuration mode. number Step 3 Router(config-controller)# pri-group [timeslot Configures the PRI group for either T1 or E1 to carry range] voice traffic. For T1, available time slots are from 1 to 23, and for E1, available time slots are from 1 to 31. You can configure the PRI group to include all available
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Configuring Support for PBX Signalling Protocols Configuring Q.SIG PRI Signalling Support Command Purpose Router(config-if)# isdn network-failure-cause Step 10 (Optional) Specifies the cause code to pass to the [value] PBX when a call cannot be placed or completed because of internal network failures. Possible values are from 1 to 127. All cause codes except for Normal Call Clearing (16), User Busy (17), No User Responding (18), and No Answer from User (19) will be changed to the speci
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Configuring Support for PBX Signalling Protocols Configuring Q.SIG PRI Signalling Support Figure 97 Q.SIG Signalling Configuration with NEC PBX FCCS FCCS IP T1 channel T1 channel NEC Cisco Cisco NEC QoS AS5300 AS5300 PBX PBX cloud Ethernet Ethernet signaling signaling To configure NEC Fusion signalling support on the Cisco AS5300, use the following commands beginning in global configuration mode: Command Purpose Router(config)# controller T1 controller number Step 1 Enters controller configur
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Configuring Support for PBX Signalling Protocols Configuring Q.SIG PRI Signalling Support Q.SIG for VoIP Configuration Example The following configuration example configures interface serial 1:23 for Q.SIG PRI and to act as the Q.SIG slave: ! version 12.0 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname as5300A ! ip subnet-zero ! isdn switch-type primary-qsig ! controller T1 0 shutdown ! controller T1 1 framing esf clock source line pr
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Configuring Support for PBX Signalling Protocols Configuring Q.SIG PRI Signalling Support shutdown ! ip default-gateway 1.14.0.1 ip classless ! line con 0 transport input none line aux 0 line vty 0 4 login ! end ===================================================== ! version 12.0 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname as5300B ! ip subnet-zero ! isdn switch-type primary-qsig ! ! controller T1 0 shutdown ! controller T1 1 fr
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Configuring Support for PBX Signalling Protocols Configuring Q.SIG PRI Signalling Support no ip directed-broadcast isdn switch-type primary-qsig isdn protocol-emulate network isdn incoming-voice modem ! interface FastEthernet0 no ip address no ip directed-broadcast shutdown ! ip default-gateway 1.14.0.1 ip classless ! line con 0 transport input none line aux 0 line vty 0 4 login ! end Configuring Q.SIG PRI Signalling Support on the Cisco MC3810 The Q.SIG protocol provides signalling f
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Configuring Support for PBX Signalling Protocols Configuring Q.SIG PRI Signalling Support Figure 98 Cisco MC3810 Q.SIG Signalling Configuration Frame Relay Cisco Cisco PBX MC3810 DLCI 200 MC3810 PBX Q.SIG Q.SIG No. 1 No. 2 E1 channel E1 channel 4001 4002 Slave Master Slave Master Q.SIG Prerequisite Tasks The following configuration tasks should be completed before you configure Q.SIG on the Cisco MC3810: � Configure the ports used on the Cisco MC3810 as voice ports. For information on how to
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Configuring Support for PBX Signalling Protocols Configuring Q.SIG PRI Signalling Support Command Purpose Router(config-if)# isdn switch-type Step 3 If you did not configure the global ISDN switch type [primary-qsig-slave | primary-qsig-master] for Q.SIG support in Step 1, configures the interface ISDN switch type to serve either as the primary Q.SIG slave or the primary Q.SIG master. The same conditions that apply to this command in global configuration mode also apply to this command i
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Configuring Support for PBX Signalling Protocols Configuring Q.SIG PRI Signalling Support Command Purpose Router(config-controller)# pri-group timeslot [1-31] Step 8 Configures the PRI group for either T1 or E1 to carry voice traffic. For T1, available time slots are 1–23, and for E1 available time slots are 1–31. You can configure the PRI group to include all the time slots available, or you can configure a select group of time slots for the PRI group. For example, if only time slots 1–
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Configuring Support for PBX Signalling Protocols Configuring Q.SIG PRI Signalling Support Q.SIG PRI Signalling on the Cisco MC3810 Configuration Example The following configuration example configures interface serial 1:15 for QSIG PRI, and to act as the QSIG master. The example shows other commands necessary for the configuration. ! version 12.1 no service pad service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname c3810a ! network-clo
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Configuring Support for PBX Signalling Protocols Configuring Q.SIG PRI Signalling Support no logging event link-status isdn switch-type primary-qsig-master isdn bchan-number-order ascending no cdp enable ! interface Switch0 no ip address no ip directed-broadcast encapsulation frame-relay no fair-queue ! interface FR-ATM0 no ip address no ip directed-broadcast ! interface FR-ATM20 no ip address no ip directed-broadcast no ip route-cache shutdown ! router rip
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Configuring Support for PBX Signalling Protocols Configuring Transparent CCS on the Cisco MC3810 dial-peer voice 10 vofr destination-pattern 4... session target Serial0 30 ! end Configuring Transparent CCS on the Cisco MC3810 The Cisco MC3810 provides support for transparent CCS, which provides point-to-point PINX connection capability to Cisco MC3810 DVM interfaces when the PINX device does not support Q.SIG, or when the PINX device has a proprietary solution. You can configure tran
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Configuring Support for PBX Signalling Protocols Configuring Transparent CCS on the Cisco MC3810 Configuring CCS Cross-Connect for T1 When you configure CCS cross-connect for T1, you need to cross-connect from the first T1 controller to the second T1 controller. To configure CCS cross-connect for T1, use the following commands beginning in global configuration mode: Command Purpose Step 1 Router(config)# controller T1 0 Enters controller configuration mode for controller T1 0. Router(config
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Configuring Support for PBX Signalling Protocols Configuring Transparent CCS on the Cisco MC3810 Command Purpose Router(config-controller-cas)# voice-group Step 6 Configures the specified channel to support CCS channel-no timeslots timeslot-list type mode, and specifies whether the T1/E1 trunk will be [ext-sig-master | ext-sig-slave] the external signalling master or slave. A channel configured as ext-sig-master automatically generates the off-hook signal and stays in the off-hook state.
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Configuring Support for PBX Signalling Protocols Configuring Transparent CCS on the Cisco MC3810 Command Purpose Step 5 For Cisco MC3810 series analog voice ports: Enters voice-port configuration mode. router(config)# voice-port slot/port For Cisco MC3810 series digital voice ports: router(config)# voice-port slot:ds0-group Step 6 Router(config-voiceport)# connection plar string Configures the voice-port connection to support PLAR mode. For the string, enter the number of the voice channel t
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Configuring Support for PBX Signalling Protocols Configuring Transparent CCS on the Cisco MC3810 Note When CCS frame-forwarding is configured, the speed (clock rate) of serial interface 1 on the Cisco MC3810 is limited to a maximum of 192 kbps. This restriction assumes that the MFT is installed in slot 3 on the Cisco MC3810. If the MFT is not installed, then serial interface 1 will not operate at all, but CCS frame-forwarding will be supported on other interfaces. Figure 100 shows an exam
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Configuring Support for PBX Signalling Protocols Configuring Transparent CCS on the Cisco MC3810 Command Purpose Step 4 For Cisco MC3810 series analog voice ports: Enters voice-port configuration mode. router(config)# voice-port slot/port For Cisco MC3810 series digital voice ports: router(config)# voice-port slot:ds0-group Step 5 Router(config-voiceport)# connection plar string If the voice port in the voice group is configured as the ext-sig-master, configures the voice-port connection to