See Table 2-32 . Cloud-Connected UC Deployment . This is used for desk phone control mode. Table 2-14 summarizes which dialing normalization translation patterns need to be provisioned using the partitions from the previous section. The Cisco UC system integrates the following major communications technologies: IP telephony: IP telephony refers to technology that transmits voice communications over anetwork using IP standards. Figure 2-5 shows the overall architecture of the integration with APNs. Variable length because the German numbering plan with country code 49 is variable length. Make sure to set the interval small enough to pick up corporate directory changes in a reasonable time, but keep in mind that executing the LDAP synchronization creates significant load on the Unified CM publisher. Connect to the cloud effortlessly with Cisco Webex Cloud for virtual meetings from anywhere.. Or, conduct a video call, share your screen with a group and message your team from any location with Cisco Webex Teams .. This chapter provides guidance for designing scalable and resilient call processing systems with Cisco Unified Communications Manager (Unified CM) and Survivable Remote Site Telephony (SRST). For emergency calls, the first call-specific resources for emergency calls should be used, then the second, then the PSTN resources defined for normal PSTN calls, and lastly the non-specific PSTN resources. Only a single member: the actual trunk to the remote Unified CM cluster. Example 2-2 Cisco IOS Voice Translations to Force Single ISDN Plan and Type. Factors contributing to the number of required MRGLs include: If site-specific media resources exist, then site-specific MRGs for those resources need to be configured, and typically also site-specific MRGLs are required to allow for site-specific selection of (typically local) media resources. To achieve the intended forced on-net routing (calls to any on-net destination dialed using any of the supported numeric dialing habits has to be routed on-net), the recommended dial plan design uses a two-step routing approach. For better readability, the LDAP filter strings in Table 2-40 are separated into multiple lines, with the indentation levels reflecting the structure of the LDAP filter strings. A centralized Unified CM cluster implements call processing services for all customer sites. For applications requiring PSTN access, another special class of service (CSS) is required to also provide access to the partitions with PSTN access route patterns (see Table 2-27 in the section on Route Patterns for PSTN Access and Emergency Calls). premises Cisco Unified CM solution environment to UCM Cloud deployment. This is the mode used in this Preferred Architecture design and cover in this document. Note Only non-default Service Parameter and other configuration field values are specified in this document. The handling and processing of voice and video calls is a critical function provided by enterprise communications systems. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Germany: national call (00-national significant number). Alternative pattern to allow termination of variable length dialing with #. SIP phones have options that allow them to behave similarly to SCCP phones (Keypad Markup Language [KPML] and dial rules). Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. The BLF Presence feature allows a user (watcher) to monitor the real-time status of another user at a directory number or SIP URI from the device of the watcher. Hence, all IM and Presence nodes, including the IM and Presence publisher, are considered subscribers of the larger Unified CM and IM and Presence Service cluster. This address format is discussed in the section on General Numbering Plan. Figure 1-4 illustrates a user at phone A placing a call to phone B. This makes sure that outbound calls to SIP do not require intra-cluster control signaling between Unified CM call processing subscribers. This chapter describes the call control function for the Cisco Preferred Architecture (PA) for Enterprise Collaboration. Keep in mind that this combination of dialing habits between different countries might create overlaps between the visited sites' emergency dialing and the visiting user's regular dialing habits. From the Service drop-down list, choose Cisco XCP Router (Active). SIP trunk ST_UCM_EMEA, as with the settings shown in Table 2-59 , is an example of an intercluster trunk provisioned for GDPR routing. Media processing functions include mixing multiple streams to create one output stream (conferencing), passing the stream from one connection to another (media termination point), converting the data stream from one compression type to another (transcoding), streaming music to callers on hold (music on hold), echo cancellation, signaling, voice termination from a TDM circuit (coding/decoding), packetization of a stream, streaming audio (annunciation), and so forth. Holds +E.164 route patterns required to provide PSTN access to international destinations. For a detailed explanation of voice translation rules, see the document on Number Translation using Voice Translation Profiles, available at, https://www.cisco.com/c/en/us/support/docs/voice/call-routing-dial-plans/64020-number-voice-translation-profiles.html. For information on how to obtain these OVA files, refer to the documentation at, https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/uc_system/virtualization/collaboration-virtualization-sizing.html. Add or remove other access control groups as needed, but keep in mind that without Standard CCM End Users, the users will not be able to log into the self-service portal. Also, PINs of all end users are always checked against the local database only. If a Unified CM based directory search is used on phones, then it does make sense to synchronized the full corporate LDAP directory to Unified CM. TheELIN is registered with the PSAP as an Emergency Response Location (ERL). In addition to enabling UDS-based service discovery for Jabber clients, provision DNS SRV records for all Unified CM publisher and TFTP subscriber nodes, defining these as service locations for _cisco-uds. Table 2-52 summarizes the device pool settings of the device pool used for gateways in a specific site. And This is achieved by assigning devices to Unified CM groups via device pool configuration as discussed in the section on Device Pools. Third-party applications: Cisco works with leading-edge companies to provide the broadest selection of innovative third-party IP communications applications and products focused on critical business needs such as messaging, customer care, and workforce optimization. All aspects of the Unified Communications and Collaboration System, including call routing, call control, applications and services, and operations and serviceability, rely heavily on proper design and deployment of the system architecture. As mentioned earlier in the section on Outbound Calls: Called and Calling Number Transformations on ISDN Gateways, calling and called party information sent and received on ISDN trunks is a triplet consisting of numbering plan, number type, and number. Call from +E.164 DN in the SJC DID range; display follows abbreviated intra-site dialing habit. In these partitions the only (potential) match is on a +E.164 directory number \+14085554001 (marked urgent) in partition DN. Because a potential longer match (could be variable length) exists, the T302 inter-digit timeout has to expire before Unified CM selects the best route and routes the call. Central PSTN access is in RCD as well. CSS might be set to a more restricted CSS, All other Forward settings other than "Forward Unregistered Internal" and "Forward Unregistered External", "Forward Unregistered Internal" and "Forward Unregistered External". After applying the called party transformations defined on a translation pattern, Unified CM then executes a secondary lookup of the resulting digit string using the calling search space (CSS) defined on the translation pattern. The device CSS can be used to implement general dialing habits that need to be available for everyone. in partition PSTNInternational (see Table 2-27 ), \+!# in partition PSTNInternational (see Table 2-27 ). Cisco Unified Communications (UC) is an IP-based communications system integrating voice,video, data, and mobility products and applications. We assume that inbound calling and called party numbers already are normalized. Unified CM IM and Presences Service as part of the centralized Unified CM cluster implements instant messaging and presence services for the enterprise. For these endpoints no DIDs (E.164 numbers) exist, and thus an address format other than +E.164 is required for these endpoints. In this design, in addition to alpha URI dialing, the numeric dialing habits shown in Table 2-11 are supported. However, to avoid routing loops and transit-routing, intercluster trunks do not have access to intercluster destinations (partition onNetRemote, see Table 2-12 ). To prevent this validation from failing, the Tomcat certificates of the Unified CM publisher and call processing subscriber nodes must be signed by a trusted CA. If you activate both Use TLS Certificates and Use Password at the same time, then at TLS connection setup the TLS certificate presented by the remote end has to pass only the regular TLS certificate validity checks (identity, validity, and trust), and the decision whether the remote peer is a trusted peer for ILS communication is based on checking the shared secret (password). Here we need to consider how to treat calling party information for a call originating from a non-DID or a call originating from a DN that is not part of the DID range associated with the given gateway. Single BLF presence group for all users, to simplify the deployment. The calling party transformation patterns in Table 2-33 perform the required transformations that make sure any calling party number, whether in the form of a +E.164 number or an enterprise specific number not matching the trunks DN range, is forced to a main number (19195551888). With this information, all IM and Presence nodes and call processing nodes of the cluster can then create connections to the Push REST service to issue notification requests targeted for specific Jabber clients (step 1). The Unified CM and IM and Presence Service servers are centrally located in RCD. Figure 2-4 Unified CM and IM and Presence Service Cluster Deployment. Route patterns configured to refer to a route list that makes use of LRGs will resolve to the actual route group configured as the LRG in the calling party's device pool. European data centres and Asia-Pacific solutions are also coming soon. The most common options are +E.164 or E.164. ST_RTP_PSTN_1 ST_RTP_PSTN_2 ST_RTP_PSTN_3. For more details on EMCC, refer to the latest version of the Cisco Collaboration System SRND and the EMCC product documentation. A two-node subcluster allows for users associated with one server of the subcluster to use the other server in the subcluster automatically if a failover event occurs. Defines date and time format and phone NTP references. The interface between each Cisco IM and Presence cluster is two-fold: an AXL/SOAP interface and a signaling protocol interface (SIP or XMPP). Create a Voicemail service for each Unity Connection node. The Architecture section discusses topics such as redundancy concepts, high availability, Computer Telephony Integration (CTI), and IM and presence architecture, and it introduces a hypothetical customer topology used in the examples throughout this document. Cisco Unified Contact Center promotes efficient and effective customer communications across large networks by enabling organizations to draw from a broader range of resources to service customers. The chapter treats the areas of design, high availability, quality of service, and bandwidth provisioning as is pertinent to each infrastructure. The main presence component of the solution is the IM and Presence Service, which incorporates the Extensible Communications Platform (XCP) and supports SIP/SIMPLE and Extensible Messaging and Presence Protocol (XMPP) for collecting information regarding a user's availability status and communications capabilities. Check and update the Enterprise Parameters listed in Table 2-2 . Unified CM groups are needed to distribute registrations equally among Unified CM call processing subscriber pairs (see the section on Cisco Unified CM Group Configuration). Unified CM Redundancy with Survivable Remote Site Telephony (SRST), Unified CM and IM and Presence Service Clustering, Deployment of the Unified CM and IM and Presence Service Cluster, Classes of Service and Calling Search Spaces (CSSs), Outbound Gateway Selection Using Local Route Group, Outbound Calls: Called and Calling Number Localization, Inbound Calls: Called and Calling Number Globalization, User Provisioning with LDAP Synchronization, Provision the Cisco Unified CM and IM and Presence Service Cluster, Cisco Unified CM and IM and Presence Service Certificate Management, Addressing Enterprise Services for External Access, Dialing Normalization Translation Patterns, Local Route Groups for Call Type Specific Outbound Gateway Selection, Route Patterns for PSTN Access and Emergency Calls, Emergency Call Considerations in Multi-National Environments, Route Patterns for Video PSTN (ISDN) Calls, Outbound Calls: Called and Calling Number Transformations on ISDN Gateways, Outbound Calls: Called and Calling Number Transformations on SIP Trunks, Inbound Calls: Called and Calling Number Transformations on ISDN Gateways, Inbound Calls: Called and Calling Number Transformations on SIP Trunks, Calling Party Information Display on Phones, Alternate Routing for Unregistered Endpoints, Media Resource Selection and Avoiding the Default MRG, Cisco IP Voice Media Streaming Application, Add the Device to Devices Controlled by the User, Configure the Line Association for Presence, ILS Configuration for Multi-Cluster Deployments, Assign Unique Cluster IDs for Each Unified CM Cluster in the Network, Activate ILS on the First ILS Hub Cluster in the Network, Activate ILS on the Remaining ILS Clusters in the Network, Configure Partitions for Learned Numbers and Patterns, Survivable Remote Site Telephony (SRST) Deployment, Deploying Computer Telephony Integration (CTI), Server Certificate Generation and Management, https://www.itu.int/en/ITU-T/inr/Pages/default.aspx, https://www.itu.int/dms_pub/itu-t/opb/sp/T-SP-E.164C-2011-PDF-E.pdf. Cisco Extension Mobility allows users to temporarily access their Cisco Unified IP Phone configuration such as line appearances, services, and speed dials from other Cisco Unified IP Phones. Keep in mind that, because SIP does not support different number types, inbound calling and called prefixes or CSSs need to be set for number type unknown if set on the device pool level. Contact centers of various sizes can be built with Cisco Unified Contact Center and Cisco Unified Contact Center Express. As discussed in the sections on Unified CM and IM and Presence Service Clustering and High Availability, the IM and Presence nodes are grouped in subclusters and each subcluster consists of two nodes for high availability. The Cisco UC system delivers fully integrated communications, converging voice, video, and data over a single network infrastructure using standards-based protocols. All other device pool level settings are not used in this design. Also configure UC services for Jabber clients, as described in the section on Jabber Provisioning. When provisioning a new endpoint, these minimum tasks are required: When adding a new endpoint to Unified CM, the design described in this document requires the settings summarized in Table 2-63 . In that case the desired format typically depends on both the calling and called entities. Certificate-based authentication of ILS TLS connections. Also, they need to be able to access the Push REST service at push.webexconnect.com. The Contact Source or directory can be configured through the jabber-config.xml file or through the directory UC service which takes precedence. Call control is centralized at a single location that serves multiple remote sites. 2022 Cisco and/or its affiliates. Figure 2-4 shows an example of a Unified CM and IM and Presence Service cluster deployment with up to 10,000 devices and 10,000 users. Normal PSTN calls should make use of the primary and secondary site-specific PSTN resources defined for normal PSTN calls. defined for international destinations. To enable AAR, an AAR group has to be defined. All connections to other entities, including call controls, applications, and conferencing resources, use SIP trunks. An ESN is the abbreviated inter-site dialing equivalent of a directory number. After successfully onboarding the cluster, you must restart the XCP Router Service on all Unified CM IM and Presence nodes in the cluster. "Use Device Pool Calling Party Transformation CSS (Caller ID For Calls From This Phone)" checked, "Use Device Pool Calling Party Transformation CSS (Device Mobility Related Information)" checked. Space-separated list of all Unified CM call processing nodes in the cluster. The recommended format for the ESN schema is an access code chosen so that no overlap between ESN dialing and other dialing habits is created, followed by a site code and the intra-site extension. Cisco Unified MeetingPlace Express is positioned to the small to medium-sized enterprises. Table 2-66 ILS Activation on First Unified CM Cluster. Extend the value of your Cisco on-premises investments by continuing to use Cisco endpoints and infrastructure. Table 2-59 SIP Trunk Settings for Intercluster Trunk to Other Unified CM Cluster. Allows monitoring of the reachability of SIP trunk peers; applies to SIP trunks only. Service Discovery enables Jabber to establish configuration automatically. Figure 2-1 illustrates, in a generalized way, how collaboration applications and services can be delivered solely on-premises, solely in the cloud, or in combination as a set of hybrid service deployments. An empty mask creates the +E.164 alternate number identical to the directory number configured above. For this server-to-server communication, TLS connections between the Unified CM clusters' nodes are established and the remote peers' certificates are validated during TLS connection setup. Use Device Pool Called Party Transformation CSS, Use Device Pool Calling Party Transformation CSS. Table 2-41 summarizes the settings for the FGT defining the capabilities of users with active devices on the Unified CM cluster. This chapter explores IP gateways, which are critical components of Unified Communications and Collaboration deployments because they provide the path for connecting to public networks. Management and administration are centralized. To simplify and provide consistent calling party presentation for all possible call flows, all calling party information received from outside networks such as the PSTN is normalized to +E.164 as discussed earlier. We can help you strategize &execute your Cloud Migration. Partition for Enterprise Alternate Numbers. Table 2-55 shows the default settings on the system generated SIP trunk security profile Non Secure SIP Trunk Profile. Cisco Jabber is available on a wide variety of platforms including Windows, Mac, and mobile devices such as smartphones and tablets. Insufficient bandwidth for calls to other destinations such as gateways and trunks does not trigger AAR. In this design the selection of video ISDN gateways is explicitly tied to a special video PSTN dialing habit (see Table 2-11 ). Table 2-40 shows two custom LDAP filters, assuming that our deployment has users in the US and Europe and that only the US users are considered as local users. Locally configured users are always authenticated against the local database. Note Route groups can be configured only after the SIP trunks have been created, and these can be added only after the respective device pool have been configured. On phones, sometimes +E.164 is not the preferred calling party display information, although keeping this information as +E.164 simplifies the deployment and is preferred. MRGLs and MRGs are constructs that hold related groups of media resources together for allocation purposes. From this perspective, my questions would be: 1. The video LRGs are provisioned for video-enabled ISDN gateways and treat them as separate resources. Holds all Enterprise Specific Numbers (ESNs). Holds route patterns required to provide access to emergency calls using the US specific emergency dialing habits. Wireless LAN infrastructure design becomes important when IP telephony is added to the wireless LAN (WLAN) portions of a converged network. Also, we need to provision the transformation required to force the calling party number from +E.164 to whatever needs to be sent to the service provider. UCM or move to a dedicated private cloud, all while maintaining third-party integrations. Of special consideration are calls originating from phones with non-DIDs. 2022 Cisco and/or its affiliates. An overview of dialing procedures used in various countries can be found in Operational Bulletin No.994 (15.XII.2011) and Annexed List: Dialling procedures (international prefix, national (trunk) prefix and national (significant) number) (in accordance with ITU-T Recommendation E.164 (11/2010)) (Position on 15 December 2011), available at https://www.itu.int/pub/T-SP-OB.994-2011. The user's availability status indicates whether or not the user is actively using a particular communications device such as a phone. Even if no format transformation is required for calling party information sent on a SIP trunk, some filtering still needs to be applied to the calling party information to make sure that only valid numbers are sent to the provider. Describe the characteristics of the CUCM database and how it provides redundancy. This leads to better battery lifetime and improved user experience. Table 2-67 ILS Activation on Additional Unified CM Clusters. Table 2-66 shows the settings to be applied when activating ILS on the first Unified CM cluster. Standard protocol interfaces, including Telephony Application Programming Interface (TAPI), Java Telephony Application Programming Interface (JTAPI), Simple Object Access Protocol (SOAP), Q.SIG, H.323, Media Gateway Control Protocol (MGCP), and Session Initiation Protocol (SIP) are available to support third-party applications. Table 2-29 Non-US Route Patterns for National Destinations. As an example, for a call to E.164 destination 4961007739764 on a trunk in Germany in the same area code 6100, the called party number in the outgoing ISDN SETUP message could be sent as (plan/type/number) ISDN/national/61007739764, ISDN/subscriber/7739764, or unknown/unknown/061007739764. This chapter describes the deployment models for Cisco Unified Communications and Collaboration Systems as they relate to the various network infrastructures such as a single site or campus, multi-site environments, and data center solutions. The call on the EMEA cluster is extended to SIP trunk ST_UCM_EMEA, dereferencing the route list RL_UCM_EMEA the matched SIP route pattern us.route points to and route group RG_UCM_EMEA (see Table 2-70 ). As explained in the previous section, the identity of server certificates presented during connection setup is validated. Unified CM is at the core of a Cisco Collaboration solution, and it serves as a foundation to deliver voice, video, IM and presence, messaging, mobility, web conferencing, and security. A subcluster can have one or two nodes. Furthermore, proper WAN infrastructure design requires deploying end-to-end QoS on all WAN links. When you activate ILS by changing the role from Standalone Cluster to Hub Cluster in Unified CM Administration, an ILS Cluster Registration pop-up appears and asks you to input a Registration Server. Backup and restore tools: CUCM provides a Disaster Recovery System (DRS) to back up and restore the CUCM configuration database. Does Cisco supports public IaaS cloud services (Azure, AWS, etc.) This is highly recommended for deployments using push notifications via APNs. If the number is not associated with a user then, provision a meaningful name (for example, Bldg. This setting allows you to define incoming calling and called party transformations per numbering type to be applied to incoming calls on gateways. LDAP synchronization is executed periodically. Forward Unregistered implements an alternate route through the PSTN in case the endpoint is unregistered. This chapter covers these deployment models and the best practices and design considerations for each model, including many other subtopics pertinent to the model discussed. For example: SJCPhLocalize. 4 Chapter 1: Cisco Unified Communications Manager Architecture CUCM Overview Cisco Unied Communications (UC) is an IP-based communications system integrating voice, video, data, and mobility products and applications. Enable Only When CDR Enabled Flag is True. Other service parameters of the Cisco CallManager service must be set explicitly as shown in Table 2-6 for each Unified CM call processing node. See the Conferencing chapter for more details on conferencing resources. Advertising both the +E.164 range and the ESN range for each site makes sure that both formats can be used as the intercluster dialing habit on the remote clusters learning this information. The use of FQDNs for connection initiation implies that DNS is a fundamental requirement. Additional information about our encryption architecture is . The IM and Presence publisher communicates with the Unified CM publisher and most of the IM and Presence configuration is actually done through the Unified CM publisher (for instance, the Unified CM users, the UC services available to presence users, and the service activation). Inbound calls have +E.164 called party numbers, and only local destinations can be called from the PSTN. Just as with wired LAN and wired WAN infrastructures, the addition of voice and video in the WLAN requires following basic configuration and design best-practices for deploying a highly available network. The AXL/SOAP interface, between publisher-only servers of an IM and Presence cluster, handles the synchronization of user information for home cluster association, but it is not a full user synchronization. Applications layer: Applications are independent from call-control functions and the physical voice-processing infrastructure. Video Cisco Smart Net . The following statements describe Unified CM's behavior when authentication is enabled: In environments that employ a distributed Active Directory topology with multiple domain controllers geographically distributed, authentication speed might be unacceptable. This CSS defines the called party transformations applied to called party information sent in the direction of the affected device. In addition to that, configure settings on IM and Presence servers: Enable availability sharing. CTI Manager (CTIM) A service that runs on one or more Unified CM subscribers operating in primary/secondary mode and that authenticates and authorizes telephony applications to control and/or monitor Cisco IP devices. Certain requirements might put your deployment outside the PA design guidelines and recommendations, in which case you might have to use other documentation such as the Cisco Collaboration SRND and related product documentation. Table 2-17 shows how class of service International for a user in site SJC would be defined based on the partition set previously defined (see Table 2-12 and Table 2-13 ). Subscriptions on +E.164, ESN, and URIs should be accepted. If a user in site SJC dials 4001, this dialed string is matched by a translation pattern 4XXX; and the called party transformation mask configured on the translation pattern, when applied to 4001, creates the resulting digit string +14085554001, which then can be routed in a +E.164 routing schema. What is UCM Cloud? 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