Cisco Systems 3600 manual Inbound versus Outbound Dial Peers

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Inbound versus Outbound Dial Peers

POTS peers associate a telephone number with a particular voice port so that incoming calls for that telephone number can be received and outgoing calls can be placed. VoIP peers point to specific devices (by associating destination telephone numbers with a specific IP address) so that incoming calls can be received and outgoing calls can be placed. Both POTS and VoIP peers are needed to establish Voice over IP connections.

Establishing communication using Voice over IP is similar to configuring an IP static route: you are establishing a specific voice connection between two defined endpoints. As shown in Figure 8, for outgoing calls (from the perspective of the POTS dial peer 1), the POTS dial peer establishes the source (via the originating telephone number or voice port) of the call. The VoIP dial peer establishes the destination by associating the destination phone number with a specific IP address.

Figure 8

Outgoing Calls from the Perspective of POTS Dial Peer 1

Source

 

 

 

 

 

 

Destination

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IP cloud

 

 

 

Dial peer 1

Dial peer 2

 

Dial peer 3

Dial peer 4

 

 

Voice port

 

 

 

 

 

 

Voice port

 

1/0/0

 

10.1.2.2

10.1.1.2

 

 

1/0/0

 

 

S6613

(408) 555-4000

(310) 555-1000

POTS call leg

VoIP call leg

To configure call connectivity between the source and destination as illustrated in Figure 8, enter the following commands on router 10.1.2.2:

dial-peer voice 1 pots destination-pattern 1408555....

port 1/0/0

dial-peer voice 2 voip destination-pattern 1310555....

session target ipv4:10.1.1.2

In the previous configuration example, the last four digits in the VoIP dial peer’s destination pattern were replaced with wildcards. This means that from access server 10.1.2.2, calling any number string that begins with the digits “1310555” will result in a connection to access server 10.1.1.2. This implies that access server 10.1.1.2 services all numbers beginning with those digits. From access server 10.1.1.2, calling any number string that begins with the digits “1408555” will result in a connection to access server 10.1.2.2. This implies that access server 10.1.2.2 services all numbers beginning with those digits. For more information about stripping and adding digits, see the “Outbound Dialing on POTS Peers” section.

Figure 9 shows how to complete the end-to-end call between dial peer 1 and dial peer 4.

Configuring Voice over IP for the Cisco 3600 Series VC-27

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Contents How Voice over IP Processes a Telephone Call Configuring Voice over IP for the Cisco 3600 SeriesList of Terms Prerequisite Tasks Voice over IP Configuration Task List Configure IP Networks for Real-Time Voice Traffic VC-18Voice, Video, and Home Applications Configuration Guide Step Command Purpose Configure Multilink PPP with InterleavingMultilink PPP Configuration Example Configure RTP Header CompressionEnable RTP Header Compression on a Serial Interface RTP Header Compression Configuration ExampleChange the Number of Header Compression Connections Configure Frame Relay for Voice over IP Configure Custom QueuingConfigure Weighted Fair Queuing Frame Relay for Voice over IP Configuration Example Create a Number Expansion Table Configure Number ExpansionShows the number expansion table for this scenario Configure Number ExpansionInbound versus Outbound Dial Peers Configure Dial PeersInbound versus Outbound Dial Peers Codec Create a Peer Configuration TableConfigure Pots Peers Outbound Dialing on Pots PeersDirect Inward Dial for Pots Peers Incoming and Outgoing Pots Call Legs Configure VoIP Peers Validation Tips Optimize Dial Peer and Network Interface ConfigurationsConfigure IP Precedence for Dial Peers Troubleshooting TipsConfigure Rsvp for Dial Peers Configure Codec for a VoIP Dial Peer Configure Codec and VAD for Dial PeersConfigure VAD for a VoIP Dial Peer Configure Voice over IP using a Trunk ConnectionVC-36Voice, Video, and Home Applications Configuration Guide Configure a Trunk Connection Configure Voice over IP for Microsoft NetMeetingFXS-to-FXS Connection Using Rsvp Voice over IP Configuration ExamplesFXS-to-FXS Connection Example Configuration for Router RLB-1VC-40Voice, Video, and Home Applications Configuration Guide Configuration for Router R12-e Configuration for Router RLB-wConfiguration for Router RLB-2 Linking PBX Users with E&M Trunk Lines Configuration for Router SJConfiguration for Router SLC Pstn Gateway Access Using FXO Connection Example Pstn Gateway Access Using FXO ConnectionPstn Gateway Access Using FXO Connection Plar Mode Pstn Gateway Access Using FXO Connection Plar ModeConfiguring Voice over IP for the Cisco 3600 Series VC-47 VC-48Voice, Video, and Home Applications Configuration Guide
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3600 specifications

Cisco Systems 3600 is a high-performance modular router series designed for small to medium-sized enterprises and branch offices. Launched in the late 1990s, it has been widely recognized for its flexibility, scalability, and reliability. The series is part of Cisco's extensive networking portfolio and has played a vital role in delivering various services and applications while enhancing operational efficiency.

One of the main features of the Cisco 3600 series is its modular architecture, allowing organizations to customize the router according to their specific needs. The system supports various interface modules that can accommodate different types of connections, including serial, Ethernet, and DSL, which helps in building versatile network solutions. The modularity not only increases the router’s lifespan by enabling upgrades as technology changes but also supports future expansion as the organization grows.

The Cisco 3600 series routers utilize advanced routing protocols, such as RIP, OSPF, EIGRP, BGP, and IS-IS, to ensure efficient data transmission and optimal network performance. This capability allows the routers to adapt to varying traffic demands and complexities, thereby optimizing bandwidth utilization and reducing latency in communications. With extensive memory options, including Flash and DRAM, the 3600 series can handle robust data processing and support intricate routing environments.

Security is another critical feature of the Cisco 3600 series. It includes support for VPNs, firewalls, and other security protocols, providing a secure environment for data transfer. The implementation of features like Access Control Lists (ACLs) and Intrusion Detection Systems (IDS) enhances the overall security posture, making it suitable for organizations looking to protect their sensitive information.

In terms of scalability, Cisco 3600 routers can easily accommodate increased workloads and network growth. This is done through the provision of additional modules and cards to increase capacity and performance. The series can also support multiple WAN connections, enabling seamless integration with various telecommunication services.

Additionally, the Cisco 3600 series is designed for ease of management. Utilizing Cisco's IOS software, network administrators can manage and configure the routers efficiently, thanks to a user-friendly interface and extensive command capabilities. This makes troubleshooting simpler and ensures network availability remains high.

In conclusion, Cisco Systems 3600 series routers combine robust performance, security features, and scalability, making them an invaluable asset for businesses looking to maintain a reliable and efficient networking solution.