diff --git a/packages/iios-service/src/adapters/adapter.registry.ts b/packages/iios-service/src/adapters/adapter.registry.ts
index 5afecb6..5ce5e93 100644
--- a/packages/iios-service/src/adapters/adapter.registry.ts
+++ b/packages/iios-service/src/adapters/adapter.registry.ts
@@ -28,7 +28,7 @@ export class AdapterRegistry {
       orgId: process.env.ADAPTER_ORG ?? 'org_portal-demo',
       appId: process.env.ADAPTER_APP ?? 'portal-demo',
     };
-    for (const channelType of ['WEBHOOK', 'EMAIL', 'WHATSAPP']) {
+    for (const channelType of ['WEBHOOK', 'EMAIL', 'WHATSAPP', 'PORTAL']) {
       this.adapters.set(channelType, {
         adapter: new WebhookAdapter(channelType),
         config: { secret: secrets[channelType] ?? 'dev-adapter-secret', scope },
diff --git a/packages/iios-service/src/app.module.ts b/packages/iios-service/src/app.module.ts
index 65a26ab..18034a4 100644
--- a/packages/iios-service/src/app.module.ts
+++ b/packages/iios-service/src/app.module.ts
@@ -9,6 +9,7 @@ import { MessageModule } from './messaging/message.module';
 import { InboxModule } from './inbox/inbox.module';
 import { SupportModule } from './support/support.module';
 import { AdaptersModule } from './adapters/adapters.module';
+import { RoutingModule } from './routing/routing.module';
 import { HealthController } from './health.controller';
 import { DevController } from './dev/dev.controller';
 
@@ -24,6 +25,7 @@ import { DevController } from './dev/dev.controller';
     InboxModule,
     SupportModule,
     AdaptersModule,
+    RoutingModule,
   ],
   controllers: [HealthController, DevController],
 })
diff --git a/packages/iios-service/src/routing/route.controller.ts b/packages/iios-service/src/routing/route.controller.ts
new file mode 100644
index 0000000..85cc87c
--- /dev/null
+++ b/packages/iios-service/src/routing/route.controller.ts
@@ -0,0 +1,62 @@
+import { BadRequestException, Body, Controller, Get, Headers, Param, Post, Query } from '@nestjs/common';
+import { IiosOutputFormat, IiosRouteMode } from '@prisma/client';
+import { RouteService } from './route.service';
+import { SessionVerifier } from '../platform/session.verifier';
+import type { MessagePrincipal } from '../identity/actor.resolver';
+import { CreateBindingDto, SimulateDto } from './route.dto';
+
+@Controller('v1/routes')
+export class RouteController {
+  constructor(
+    private readonly routes: RouteService,
+    private readonly session: SessionVerifier,
+  ) {}
+
+  @Post('bindings')
+  async createBinding(@Body() body: CreateBindingDto, @Headers('authorization') auth?: string) {
+    return this.routes.createBinding(this.principal(auth), {
+      ...body,
+      mode: body.mode as IiosRouteMode | undefined,
+      outputFormat: body.outputFormat as IiosOutputFormat | undefined,
+    });
+  }
+
+  @Get('bindings')
+  async listBindings(@Headers('authorization') auth?: string) {
+    return this.routes.listBindings(this.principal(auth));
+  }
+
+  @Post('simulate')
+  async simulate(@Body() body: SimulateDto, @Headers('authorization') auth?: string) {
+    this.principal(auth);
+    return this.routes.simulate(body.interactionId, { channelType: body.originChannelType, ref: body.originRef });
+  }
+
+  @Get('decisions')
+  async decisions(@Query('state') state?: string, @Headers('authorization') auth?: string) {
+    this.principal(auth);
+    return this.routes.listDecisions({ state });
+  }
+
+  @Post('decisions/:id/approve')
+  async approve(@Param('id') id: string, @Headers('authorization') auth?: string) {
+    return this.routes.approve(id, this.principal(auth));
+  }
+
+  @Post('decisions/:id/deny')
+  async deny(@Param('id') id: string, @Headers('authorization') auth?: string) {
+    return this.routes.deny(id, this.principal(auth));
+  }
+
+  @Post('bindings/:id/flush-digest')
+  async flushDigest(@Param('id') id: string, @Headers('authorization') auth?: string) {
+    this.principal(auth);
+    return this.routes.flushDigest(id);
+  }
+
+  private principal(authorization?: string): MessagePrincipal {
+    const token = (authorization ?? '').replace(/^Bearer\s+/i, '');
+    if (!token) throw new BadRequestException('Authorization bearer token is required');
+    return this.session.verify(token);
+  }
+}
diff --git a/packages/iios-service/src/routing/route.dto.ts b/packages/iios-service/src/routing/route.dto.ts
new file mode 100644
index 0000000..763d25e
--- /dev/null
+++ b/packages/iios-service/src/routing/route.dto.ts
@@ -0,0 +1,24 @@
+import { IsBoolean, IsIn, IsOptional, IsString } from 'class-validator';
+
+const MODES = ['MANUAL', 'AUTOMATIC', 'HYBRID', 'SIMULATION_ONLY'] as const;
+const FORMATS = ['FORWARD', 'THREADED', 'DIGEST', 'SUMMARY', 'TRANSCRIPT'] as const;
+
+export class CreateBindingDto {
+  @IsString() originChannelType!: string;
+  @IsOptional() @IsString() originRef?: string;
+  @IsString() destinationChannelType!: string;
+  @IsOptional() @IsString() destinationRef?: string;
+  @IsOptional() @IsString() restrictionProfile?: string;
+  @IsOptional() @IsIn(MODES) mode?: (typeof MODES)[number];
+  @IsOptional() @IsIn(FORMATS) outputFormat?: (typeof FORMATS)[number];
+  @IsOptional() @IsString() frequency?: string;
+  @IsOptional() @IsBoolean() includeAttachments?: boolean;
+  @IsOptional() @IsBoolean() requiresReview?: boolean;
+  @IsOptional() @IsBoolean() enabled?: boolean;
+}
+
+export class SimulateDto {
+  @IsString() interactionId!: string;
+  @IsString() originChannelType!: string;
+  @IsOptional() @IsString() originRef?: string;
+}
diff --git a/packages/iios-service/src/routing/route.service.ts b/packages/iios-service/src/routing/route.service.ts
new file mode 100644
index 0000000..c494615
--- /dev/null
+++ b/packages/iios-service/src/routing/route.service.ts
@@ -0,0 +1,133 @@
+import { BadRequestException, Injectable, NotFoundException } from '@nestjs/common';
+import { Prisma, IiosRouteBinding, IiosRouteDecision, IiosRouteMode, IiosOutputFormat } from '@prisma/client';
+import { CloudEvent, IIOS_EVENTS } from '@insignia/iios-contracts';
+import { PrismaService } from '../prisma/prisma.service';
+import { RouteSimulator, type OriginRef } from './route-simulator';
+import { OutboundService } from '../adapters/outbound.service';
+import { ActorResolver, type MessagePrincipal } from '../identity/actor.resolver';
+
+export interface CreateBindingInput {
+  originChannelType: string;
+  originRef?: string;
+  destinationChannelType: string;
+  destinationRef?: string;
+  restrictionProfile?: string;
+  mode?: IiosRouteMode;
+  outputFormat?: IiosOutputFormat;
+  frequency?: string;
+  includeAttachments?: boolean;
+  requiresReview?: boolean;
+  enabled?: boolean;
+}
+
+@Injectable()
+export class RouteService {
+  constructor(
+    private readonly prisma: PrismaService,
+    private readonly simulator: RouteSimulator,
+    private readonly outbound: OutboundService,
+    private readonly actors: ActorResolver,
+  ) {}
+
+  async createBinding(principal: MessagePrincipal, input: CreateBindingInput) {
+    const scope = await this.actors.resolveScope(principal);
+    return this.prisma.iiosRouteBinding.create({ data: { ...input, scopeId: scope.id } });
+  }
+
+  async listBindings(principal: MessagePrincipal) {
+    const scope = await this.actors.resolveScope(principal);
+    return this.prisma.iiosRouteBinding.findMany({ where: { scopeId: scope.id }, orderBy: { createdAt: 'desc' } });
+  }
+
+  simulate(interactionId: string, origin: OriginRef) {
+    return this.simulator.simulate(interactionId, origin);
+  }
+
+  async listDecisions(opts: { state?: string } = {}) {
+    return this.prisma.iiosRouteDecision.findMany({
+      where: opts.state ? { decisionState: opts.state as IiosRouteDecision['decisionState'] } : {},
+      orderBy: { createdAt: 'desc' },
+      take: 100,
+      include: { routeBinding: true },
+    });
+  }
+
+  async approve(decisionId: string, principal: MessagePrincipal) {
+    const decision = await this.prisma.iiosRouteDecision.findUnique({ where: { id: decisionId }, include: { routeBinding: true } });
+    if (!decision) throw new NotFoundException('route decision not found');
+    if (decision.decisionState === 'DENY' || decision.decisionState === 'SUPPRESS') {
+      throw new BadRequestException(`cannot approve a ${decision.decisionState} decision`);
+    }
+    const actor = await this.actors.resolveActor(decision.routeBinding.scopeId, principal);
+    const updated = await this.prisma.iiosRouteDecision.update({
+      where: { id: decisionId },
+      data: { decisionState: 'ALLOW', decidedByActorId: actor.id },
+    });
+    await this.emitApproved(decision.routeBinding.scopeId, decisionId);
+    await this.execute(updated, decision.routeBinding);
+    return this.prisma.iiosRouteDecision.findUniqueOrThrow({ where: { id: decisionId } });
+  }
+
+  async deny(decisionId: string, principal: MessagePrincipal) {
+    const decision = await this.prisma.iiosRouteDecision.findUnique({ where: { id: decisionId }, include: { routeBinding: true } });
+    if (!decision) throw new NotFoundException('route decision not found');
+    const actor = await this.actors.resolveActor(decision.routeBinding.scopeId, principal);
+    return this.prisma.iiosRouteDecision.update({
+      where: { id: decisionId },
+      data: { decisionState: 'DENY', decidedByActorId: actor.id },
+    });
+  }
+
+  /** Dispatch an ALLOW decision to the P5 sandbox (no real network). Idempotent. */
+  async execute(decision: IiosRouteDecision, binding: IiosRouteBinding): Promise<void> {
+    if (decision.executed || decision.decisionState !== 'ALLOW') return;
+    const preview = decision.previewPayload as { text?: string };
+    const cmd = await this.outbound.send(
+      binding.destinationChannelType,
+      binding.destinationRef ?? 'default',
+      { text: preview.text ?? '' },
+      `route:${decision.id}`,
+    );
+    await this.prisma.iiosRouteDecision.update({ where: { id: decision.id }, data: { executed: true, executedCommandId: cmd.id } });
+  }
+
+  /** Digest window MVP: batch this binding's un-executed ALLOW digest decisions into one forward. */
+  async flushDigest(bindingId: string): Promise<{ forwarded: number }> {
+    const binding = await this.prisma.iiosRouteBinding.findUniqueOrThrow({ where: { id: bindingId } });
+    const pending = await this.prisma.iiosRouteDecision.findMany({
+      where: { routeBindingId: bindingId, outputFormat: 'DIGEST', decisionState: 'ALLOW', executed: false },
+      orderBy: { createdAt: 'asc' },
+    });
+    if (pending.length === 0) return { forwarded: 0 };
+    const digest = pending.map((d) => (d.previewPayload as { text?: string }).text ?? '').join('\n');
+    const cmd = await this.outbound.send(binding.destinationChannelType, binding.destinationRef ?? 'default', { text: `[digest x${pending.length}]\n${digest}` }, `digest:${bindingId}:${pending[pending.length - 1]!.id}`);
+    await this.prisma.iiosRouteDecision.updateMany({
+      where: { id: { in: pending.map((d) => d.id) } },
+      data: { executed: true, executedCommandId: cmd.id },
+    });
+    return { forwarded: pending.length };
+  }
+
+  private async emitApproved(scopeId: string, decisionId: string): Promise<void> {
+    const event: CloudEvent = {
+      specversion: '1.0',
+      id: `evt_routeapproved_${decisionId}`,
+      type: IIOS_EVENTS.routeApproved,
+      source: `iios/routing/${scopeId}`,
+      subject: `route_decision/${decisionId}`,
+      time: new Date().toISOString(),
+      datacontenttype: 'application/json',
+      insignia: { scopeSnapshotId: scopeId, idempotencyKey: `routeapproved:${decisionId}`, dataClass: 'internal' },
+      data: { decisionId },
+    };
+    await this.prisma.iiosOutboxEvent.create({
+      data: {
+        aggregateType: 'route_decision',
+        aggregateId: decisionId,
+        eventType: IIOS_EVENTS.routeApproved,
+        cloudEvent: event as unknown as Prisma.InputJsonValue,
+        partitionKey: `${scopeId}:${decisionId}`,
+      },
+    });
+  }
+}
diff --git a/packages/iios-service/src/routing/route.spec.ts b/packages/iios-service/src/routing/route.spec.ts
index d86933c..e93dd0a 100644
--- a/packages/iios-service/src/routing/route.spec.ts
+++ b/packages/iios-service/src/routing/route.spec.ts
@@ -7,6 +7,9 @@ import { MessageService, type MessagePrincipal } from '../messaging/message.serv
 import { ActorResolver } from '../identity/actor.resolver';
 import { RuleEngine } from './rule-engine';
 import { RouteSimulator } from './route-simulator';
+import { RouteService } from './route.service';
+import { OutboundService } from '../adapters/outbound.service';
+import { AdapterRegistry } from '../adapters/adapter.registry';
 import type { PrismaService } from '../prisma/prisma.service';
 
 const url = process.env.DATABASE_URL ?? 'postgresql://iios:iios@localhost:5434/iios?schema=public';
@@ -93,3 +96,39 @@ describe('Route simulator (P6, preview-first)', () => {
     expect(first.decisions[0]?.reasonCodes).toEqual(second.decisions[0]?.reasonCodes);
   });
 });
+
+describe('RouteService approve/deny → execute (P6)', () => {
+  const admin: MessagePrincipal = { userId: 'admin', orgId: 'org_demo', appId: 'portal-demo', displayName: 'Admin' };
+  const svc = () => new RouteService(asService, new RouteSimulator(asService, new RuleEngine()), new OutboundService(asService, new AdapterRegistry()), actors);
+
+  it('approving a REVIEW decision executes the forward to the sandbox', async () => {
+    const { interactionId, scopeId } = await makeInteraction('party at 9 PM');
+    await makeBinding(scopeId, 'seniors', 'SENIORS');
+    const service = svc();
+    await service.simulate(interactionId, ORIGIN);
+    const b = await prisma.iiosRouteBinding.findFirstOrThrow({ where: { destinationRef: 'seniors' } });
+    const decision = await prisma.iiosRouteDecision.findUniqueOrThrow({
+      where: { interactionId_routeBindingId: { interactionId, routeBindingId: b.id } },
+    });
+    expect(decision.decisionState).toBe('REVIEW');
+
+    const approved = await service.approve(decision.id, admin);
+    expect(approved.decisionState).toBe('ALLOW');
+    expect(approved.executed).toBe(true);
+    expect(await prisma.iiosOutboundCommand.count()).toBe(1); // dispatched to sandbox
+  });
+
+  it('denying a decision never executes', async () => {
+    const { interactionId, scopeId } = await makeInteraction('party at 9 PM');
+    await makeBinding(scopeId, 'children', 'CHILD');
+    const service = svc();
+    await service.simulate(interactionId, ORIGIN);
+    const b = await prisma.iiosRouteBinding.findFirstOrThrow({ where: { destinationRef: 'children' } });
+    const decision = await prisma.iiosRouteDecision.findUniqueOrThrow({
+      where: { interactionId_routeBindingId: { interactionId, routeBindingId: b.id } },
+    });
+    // already DENY; approving is rejected, and nothing is sent
+    await expect(service.approve(decision.id, admin)).rejects.toThrow();
+    expect(await prisma.iiosOutboundCommand.count()).toBe(0);
+  });
+});
diff --git a/packages/iios-service/src/routing/routing.module.ts b/packages/iios-service/src/routing/routing.module.ts
index 7160602..5603191 100644
--- a/packages/iios-service/src/routing/routing.module.ts
+++ b/packages/iios-service/src/routing/routing.module.ts
@@ -1,9 +1,14 @@
 import { Module } from '@nestjs/common';
+import { AdaptersModule } from '../adapters/adapters.module';
 import { RuleEngine } from './rule-engine';
 import { RouteSimulator } from './route-simulator';
+import { RouteService } from './route.service';
+import { RouteController } from './route.controller';
 
 @Module({
-  providers: [RuleEngine, RouteSimulator],
-  exports: [RuleEngine, RouteSimulator],
+  imports: [AdaptersModule],
+  controllers: [RouteController],
+  providers: [RuleEngine, RouteSimulator, RouteService],
+  exports: [RuleEngine, RouteSimulator, RouteService],
 })
 export class RoutingModule {}