Cisco Systems manual Distinguishing Voice and Modem Calls on the Cisco AS5800

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Configuring Dial Peers

Using the elements, the algorithm is as follows:

For all peers where call type (VoIP versus POTS) match dial peer type:

if the type is matched, associate the called number with the incoming called-number else if the type is matched, associate calling-number with answer-address

else if the type is matched, associate calling-number with destination-pattern else if the type is matched, associate voice port to port

This algorithm shows that if a value is not configured for answer-address, the origin address is used because, in most cases, the origin address and answer-address are the same.

To configure a POTS dial peer for direct inward dial, use the following commands beginning in global configuration mode:

Step

Command

Purpose

1

Router(config)# dial-peer voice number pots

Enters the dial peer configuration mode to configure a

 

 

POTS peer.

 

 

 

2

Router(config-dial-peer)# direct-inward-dial

Specifies direct inward dial for this POTS peer.

 

 

 

Note Direct inward dial is configured for the calling POTS dial peer.

Distinguishing Voice and Modem Calls on the Cisco AS5800

When the Cisco AS5800 is handling both modem and voice calls, it needs to be able to identify the service type of the call—that is, whether or not the incoming call to the server is a modem or a voice call. When the access server handles only modem calls, the service type identification is handled through modem pools. Modem pools associate calls with modem resources based on the called-number (DNIS). In a mixed environment, where the server receives both modem and voice calls, you need to identify the service type of a call by using the incoming called-numbercommand.

Without this, the server attempts to resolve whether an incoming call is a modem or voice call based on the interface over which the call comes. If the call comes in over an interface associated with a modem pool, the call is assumed to be a modem call; if a call comes in over a voice port associated with a dial peer, the call is assumed to be a voice call.

It helps to understand the logic behind the algorithm the system uses to distinguish voice and modem calls. The algorithm is as follows:

If the called-number matches a number from the modem pool, handle the call as a modem call

If the called-number matches a configured dial peer incoming called number, handle the call as a voice call

Else handle the call as a modem call by default modem pool

If there is no called-number information configured, call classification is handled as follows:

If the interface matches the interface configured for the modem pool, handle the call as a modem call.

If the voice port matches the one configured as the dial peer port, handle the call as a voice call

Else handle the call as a modem call by default modem pool

To identify the service type of a call to be voice, use the following commands beginning in global configuration mode:

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Contents Voice over IP for the Cisco AS5800 Feature OverviewFeature Overview BenefitsTwo-Stage-Dial Toll Bypass Benefits Two-Stage Dial Toll Bypass Pstn Voice-Traffic and Fax-Traffic Off loadRelated Documents Related Features and TechnologiesUniversally Accessible Voice-Mail and Fax-Mail Services RestrictionsMIBs Supported PlatformsSupported Standards, MIBs, and RFCs StandardsPrerequisites PrerequisitesConfiguration Tasks Configuring IP Networks for Real-Time Voice TrafficConfiguration Tasks Configuring Custom Queuing and IP RTP Reserve Configuring Voice PortsStep Command Purpose Configuring Voice PortsConfiguration Tasks Step Command Purpose Fine-Tuning Isdn Voice PortsVerifying Voice Port Configuration Troubleshooting TipsSecondsinfinity Inbound versus Outbound Dial Peers Configuring Dial PeersPots peer. The number value of the dial-peer voice Configuring Pots PeersPots command is a tag that uniquely identifies Outbound Dialing on Pots PeersIncoming and Outgoing Pots Call Legs Direct Inward Dial for Pots PeersDistinguishing Voice and Modem Calls on the Cisco AS5800 Using the elements, the algorithm is as followsVerifying Dial Peer Configuration Configuring VoIP PeersRouterconfig-if#h323-gateway voip h323-id Configuring the Cisco AS5800 as an H.323 GatewayConfiguring the Cisco AS5800 as an H.323 Gateway Routerconfig-if#h323-gateway voip interfaceRouter config# call application voice name Configuring the Cisco AS5800 for Interactive Voice ResponseVerifying Gateway Interface Configuration Configuring IVRConfiguration Example Verifying IVR ConfigurationConfiguration Example Configuring the Cisco 3640 as a Gatekeeper Configuring the Cisco 2600 as a GatewayConfiguring the Cisco AS5800 as a Gateway Command Reference New CommandsCommand Reference Codec Port Show csm Show voice port Voice-port Modified CommandsSyntax Description DefaultsCommand Modes CodecExamples Command HistoryRelated Commands Usage GuidelinesDtmf-relay CommandDescription Cisco MC3810 DefaultNo port is configured PortExample Command ModeShow csm Router# show csm voice 2/4/4/0 Field Description Explains the fields contained in both of these examplesSpecifies the T1 or E1 controller Show csm voice Field DescriptionsCommand Reference Show csm voice Field Descriptions Show csm Tdmdspstream Related Commands Syntax Description For the Cisco 2600/3600 series Show voice portShow voice port For the Cisco AS5300 Access ServerFor the Cisco AS5800 Universal Access Server For the Cisco MC3810Router# show voice port 1/0/0 Router# show voice port 1/2 Explains the fields in the sample output Show voice port Field DescriptionsSummary Show voice port Command Reference Show voice port Field Descriptions Show voice port Field Descriptions for the Cisco AS58005800# show voice port 1/0/0D Isdn 1/0/0D Show call active voice Show vrm activecalls ReleaseModification5800# show vrm activecalls Show vrm vdevice Field Descriptions Show vrm activecallsCommand Reference Show vrm vdevice Field Descriptions Show vrm vdevices Show vrm vdevices5800# show vrm vdevices 6 Show vrm vdevices Summary of voice devices for all voice cards 5800# show vrm vdevices summaryShow vrm vdevice summary Field Descriptions CCCAPCODECG711U DSP# Show vrm activecalls Test vrm busyout Test vrm busyoutRouter# test vrm busyout 4 all Router# test vrm busyout 4 1 channel Router# test vrm busyout 4 1Router# test vrm reset 4 Test vrm resetFollowing example resets DSP 4 on the VFC installed in slot Test vrm resetRouter# test vrm unbusyout 4 all Test vrm unbusyoutTest vrm unbusyout Router# test vrm unbusyout 4 1Router# test vrm unbusyout 4 1 channel Voice-port Voice-port Global configurationDial-peer voice Debug Commands New Debug CommandsDebug Commands Debug vrm control There are no arguments or keywords used in this commandFormat of the Send messages is as follows Format for the Receive messages is as followsDebug vrm control Debug vrm control Field Descriptions Describes the fields in previous exampleDebug vrm error Debug vrm errorVtspfail codec value not supported Expains the field contained in the previous example This error message notifies the VRM of a DSP alarmPossible state values are as follows = Reset Debug vrm error Field DescriptionsDebug vrm control Debug vrm inout Debug vrm inoutGlossary GlossaryGlossary Glossary
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AS5800 specifications

Cisco Systems has long been a leader in the networking and telecommunications field, and its AS5800 series of routers exemplify this tradition. The AS5800, along with the AS5850, AS5350, AS5400, and AS5300, provides robust solutions for service providers and enterprise-level networking applications. Each of these models has distinct features and characteristics that cater to the evolving demands of internet traffic and data processing.

The Cisco AS5800 is designed for high-capacity routing and optimized for broadband services. It supports a wide range of services, including voice, data, and video applications, making it a versatile option for service providers looking to deliver integrated solutions. It is equipped with advanced quality of service (QoS) features that ensure bandwidth is allocated effectively, holding strong even under heavy traffic conditions.

In comparison, the AS5850 offers superior processing capabilities and is typically utilized in larger-scale implementations. This model supports high-density interfaces, allowing numerous connections without compromising performance. Its architecture includes enhanced MPLS (Multiprotocol Label Switching) support, enabling more efficient traffic management and better utilization of network resources.

The AS5350 is known for its scalability and energy efficiency, ideal for voice-over-IP (VoIP) and media gateway applications. It supports various telephony features, such as protocol interworking and transcoding, making it a preferred choice for organizations focusing on digital voice technologies. The AS5300, while slightly older, continues to be a valuable asset for less demanding networks, offering reliable performance with VoIP capabilities and basic data applications.

The AS5400 bridges the gap between high-performance routing and operational efficiency. It incorporates Cisco's proprietary technologies to ensure seamless connectivity and robust failover systems. This model is highly regarded for its security features, protecting network integrity and providing peace of mind for businesses relying on sensitive data transfer.

Overall, Cisco’s AS5800 series showcases a progressive evolution of routing capabilities with enhanced features tailored for resilience, scalability, and performance. These routers not only address the technical needs of modern networks but also strategically position organizations for future growth in an increasingly digital world. Each model, with its unique attributes, continues to support the varied demands of global communication infrastructures.
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