{"id":18931,"date":"2026-11-13T06:03:22","date_gmt":"2026-11-13T06:03:22","guid":{"rendered":"https:\/\/paicore.tech\/?p=18931"},"modified":"2026-11-13T06:16:35","modified_gmt":"2026-11-13T06:16:35","slug":"keeping-subscribers-reachable-across-networks-with-paicore-smsf","status":"publish","type":"post","link":"https:\/\/paicore.tech\/news\/keeping-subscribers-reachable-across-networks-with-paicore-smsf\/","title":{"rendered":"Keeping Subscribers Reachable Across Networks with PAiCore SMSF"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"18931\" class=\"elementor elementor-18931\" data-elementor-settings=\"{&quot;ha_cmc_init_switcher&quot;:&quot;no&quot;}\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-745e675 elementor-section-height-min-height elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-items-middle elementor-invisible\" data-id=\"745e675\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;fadeIn&quot;,&quot;stretch_section&quot;:&quot;section-stretched&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-515aca7\" data-id=\"515aca7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f8d147b elementor-widget elementor-widget-spacer\" data-id=\"f8d147b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-706c8cf elementor-widget elementor-widget-theme-post-title elementor-page-title elementor-widget-heading\" data-id=\"706c8cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"theme-post-title.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Keeping Subscribers Reachable Across Networks with PAiCore SMSF<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8fa0d18 elementor-align-center elementor-widget elementor-widget-post-info\" data-id=\"8fa0d18\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"post-info.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-inline-items elementor-icon-list-items elementor-post-info\">\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-f8d7736 elementor-inline-item\" itemprop=\"datePublished\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-date\">\n\t\t\t\t\t\t\t\t\t\tNovember 13, 2026\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-159eff6 elementor-widget elementor-widget-shortcode\" data-id=\"159eff6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><p style=\"color: #fff !important; text-align: center;\"><span class=\"span-reading-time rt-reading-time\"><span class=\"rt-label rt-prefix\"><\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">min read<\/span><\/span><\/p><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-17beabb elementor-widget elementor-widget-spacer\" data-id=\"17beabb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9634c7a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9634c7a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b986b16\" data-id=\"b986b16\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b1fb0ab elementor-widget elementor-widget-spacer\" data-id=\"b1fb0ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f200e7 elementor-widget elementor-widget-text-editor\" data-id=\"7f200e7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h1>Keeping Subscribers Reachable Across Networks with PAiCore SMSF<\/h1><p><strong>Category:<\/strong> 5G Messaging | Network Interoperability | SMSF<\/p><p>As mobile operators transition towards 5G Standalone (5G SA), maintaining messaging continuity across legacy and next-generation network environments requires accurate subscriber identification and intelligent routing.<\/p><p>With subscribers identified through different addressing schemes across network generations, resolving subscriber identities is an important part of message delivery. PAiCore SMSF addresses this requirement through GPSI-to-SUPI identity resolution, configurable routing policies, and priority-based message handling.<\/p><h2>The Challenge of Subscriber Identity Across Networks<\/h2><p>The evolution towards 5G Standalone introduces differences in how subscriber identities are represented and resolved across network domains.<\/p><p>Bharti Airtel recently stated that its 5G network is fully Standalone-ready, while its Fixed Wireless Access (FWA) service already operates entirely on standalone 5G. The update, reported during Airtel&#8217;s Q4 FY26 earnings call, illustrates the growing operational scale of 5G SA deployments.<\/p><p>In a mixed-network environment, a legacy network may address a subscriber using MSISDN and IMSI, while a 5G Core may identify the same subscriber using SUPI or GPSI.<\/p><p>Successful message delivery depends on resolving these identities correctly before selecting the appropriate routing destination.<\/p><p>When identifiers cannot be resolved, a message may fail to match an active subscriber context and be rejected, even when the subscriber is reachable through another eligible network path.<\/p><h2>GPSI-to-SUPI Identity Resolution<\/h2><p>PAiCore SMSF Module v1.0.0 addresses this challenge by resolving an active UE SMS context from GPSI to SUPI before routing.<\/p><p>The process determines whether an active subscriber context is available for message delivery. When no active context exists, the subscriber is treated as unavailable, and the message moves to the next eligible destination according to the configured routing rules.<\/p><p>This mechanism enables the SMSF to make routing decisions based on subscriber context rather than relying solely on the destination address.<\/p><h2>Configurable Routing Rules and Message Processing<\/h2><p>Subscriber identity resolution is only one part of the messaging process. Operators also need control over how messages are evaluated, modified, and dispatched across different network destinations.<\/p><p>PAiCore SMSF provides configurable routing rules that operate on multiple message and signaling parameters, including:<\/p><ul><li><p>Origin, source, and destination addresses<\/p><\/li><li><p>Type of Number (TON) and Numbering Plan Indicator (NPI)<\/p><\/li><li><p>IMSI<\/p><\/li><li><p>Message content<\/p><\/li><li><p>SCCP data<\/p><\/li><li><p>Custom parameters<\/p><\/li><\/ul><p>Based on the configured conditions, routing actions can rewrite addresses and prefixes, modify message content, and adjust signaling settings before dispatch.<\/p><p>This allows operators to apply routing policies according to subscriber information, message characteristics, and network requirements.<\/p><h2>Priority-Based Message Delivery<\/h2><p>Different messaging services have different delivery requirements. One-time passwords (OTPs), authentication messages, and other time-sensitive communications require different handling from bulk messaging traffic.<\/p><p>PAiCore SMSF supports priority-based routing through three delivery levels:<\/p><ul><li><p><strong>High Priority<\/strong><\/p><\/li><li><p><strong>Medium Priority<\/strong><\/p><\/li><li><p><strong>Low Priority<\/strong><\/p><\/li><\/ul><p>Matched traffic is directed into the appropriate priority flow, ensuring that time-sensitive messages, such as OTPs, are not queued behind bulk traffic.<\/p><p>This gives operators greater control over message processing and allows delivery priorities to reflect the requirements of individual messaging services.<\/p><h2>Unified Multi-Protocol Routing<\/h2><p>Managing routing policies independently across different network technologies can introduce operational complexity and inconsistent behaviour.<\/p><p>PAiCore addresses this through a shared routing engine used across the platform. Operators can maintain a common routing policy across multiple protocols, including:<\/p><ul><li><p><strong>SS7<\/strong> \u2013 Signaling System No. 7<\/p><\/li><li><p><strong>Diameter<\/strong> \u2013 Diameter-based network signaling<\/p><\/li><li><p><strong>SMPP<\/strong> \u2013 Short Message Peer-to-Peer<\/p><\/li><li><p><strong>HTTP<\/strong> \u2013 Hypertext Transfer Protocol<\/p><\/li><li><p><strong>SIP<\/strong> \u2013 Session Initiation Protocol<\/p><\/li><li><p><strong>5G<\/strong> \u2013 Fifth-generation mobile network traffic<\/p><\/li><\/ul><p>Because the routing engine is shared, policy changes apply consistently across supported protocols. Operators can maintain a unified approach to routing without managing entirely separate policies for each network technology.<\/p><h2>Enabling Messaging Continuity in 5G Networks<\/h2><p>As mobile operators expand their 5G Standalone infrastructure, accurate subscriber identity resolution, flexible routing, and delivery prioritisation become increasingly important to messaging continuity.<\/p><p>PAiCore SMSF combines GPSI-to-SUPI identity resolution, configurable routing rules, priority-based message handling, and shared multi-protocol routing to support message delivery across interconnected network environments.<\/p><p>By bringing these capabilities together, PAiCore SMSF helps operators manage subscriber reachability and messaging requirements as their networks evolve towards 5G Standalone.<\/p><h3>Explore PAiCore SMSF Module<\/h3><p>Discover the PAiCore SMSF Module v1.0.0 and its capabilities for native SMS in 5G Standalone networks.<\/p><p><strong>Product Page:<\/strong><\/p><p><a href=\"https:\/\/paicore.tech\/platforms\/messaging\/smsc-smsf\/\">https:\/\/paicore.tech\/platforms\/messaging\/smsc-smsf\/<\/a><\/p><p><strong>GitHub Repository:<\/strong><\/p><p><a href=\"https:\/\/github.com\/paicoretech\/smsf-module\">https:\/\/github.com\/paicoretech\/smsf-module<\/a><\/p><p><br \/><strong>News source:<\/strong><\/p><p><span style=\"font-weight: 400;\"> TelecomTalk, \u201cAirtel Says 5G Network Is Fully SA Ready, FWA Already Runs on Standalone 5G\u201d (<\/span><a href=\"https:\/\/telecomtalk.info\/airtel-says-5g-network-is-fully-sa-ready-fwa-already-runs-on-standalone-5g\/1007589\/\"><span style=\"font-weight: 400;\">https:\/\/telecomtalk.info\/airtel-says-5g-network-is-fully-sa-ready-fwa-already-runs-on-standalone-5g\/1007589\/<\/span><\/a><span style=\"font-weight: 400;\">)<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f85f1e2 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"f85f1e2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0173147 e-flex e-con-boxed e-con e-parent\" data-id=\"0173147\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dd0cc70 elementor-widget elementor-widget-spacer\" data-id=\"dd0cc70\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53a6b8e elementor-widget elementor-widget-text-editor\" data-id=\"53a6b8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Interested&#8230;?<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e997386 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"e997386\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/paicore.tech\/contact\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Let's Talk<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ebfaa6b elementor-widget elementor-widget-spacer\" data-id=\"ebfaa6b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>PAiCore SMSF Module v1.0.0 helps operators maintain messaging continuity across 5G and legacy network environments through GPSI-to-SUPI identity resolution, configurable routing policies, and priority-based message handling. It enables more flexible subscriber identification and routing decisions, helping operators manage message delivery across interconnected network technologies as they transition towards 5G Standalone.<\/p>\n","protected":false},"author":1,"featured_media":18937,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[34],"tags":[110,111,109],"class_list":["post-18931","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-5g","tag-smsc","tag-smsf"],"_links":{"self":[{"href":"https:\/\/paicore.tech\/index.php?rest_route=\/wp\/v2\/posts\/18931","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/paicore.tech\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/paicore.tech\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/paicore.tech\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/paicore.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=18931"}],"version-history":[{"count":8,"href":"https:\/\/paicore.tech\/index.php?rest_route=\/wp\/v2\/posts\/18931\/revisions"}],"predecessor-version":[{"id":18941,"href":"https:\/\/paicore.tech\/index.php?rest_route=\/wp\/v2\/posts\/18931\/revisions\/18941"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/paicore.tech\/index.php?rest_route=\/wp\/v2\/media\/18937"}],"wp:attachment":[{"href":"https:\/\/paicore.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18931"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/paicore.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18931"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/paicore.tech\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18931"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}