Specification sheet · Messaging & A2P SMS
Two-Way SMS & Conversational Messaging
Receive and reply to SMS on virtual mobile numbers, long codes and short codes in 60+ countries - routed by keyword to your webhook, agent inbox or chatbot in real time.
Inbound and conversational SMS on virtual mobile numbers, long codes and short codes in 60+ countries, with keyword routing, webhooks, agent inbox, chatbots and surveys.
- Countries with inbound numbers
- 60+
- Inbound to webhook
- < 2 s
- Operator connections
- 800+
At a glance
- Inbound SMS on VMNs, long codes and short codes in 60+ countries
- Keyword, regex and session-based routing of every reply
- Real-time MO delivery via HTTPS webhook, SMPP or agent inbox
- Shared inbox with threads, assignment, tags and canned replies
- Chatbot integration over REST with seamless human handover
- SMS surveys, polls and NPS/CSAT capture with branching logic
- 10DLC, toll-free and short-code two-way messaging in the US
- Full conversation history, retention controls and export
Typical use cases
- 01Appointment confirmation and rescheduling
- 02Delivery and logistics exceptions
- 03Customer support and sales
- 04Surveys, feedback and research
- 05Banking and payment confirmations
- 06Contests, voting and keyword campaigns
Technical & commercial specifications
| Inbound coverage | 60+ countries; outbound to 200+ |
|---|---|
| Number types | VMNs, long codes, US 10DLC and toll-free, short codes |
| MO delivery | Signed HTTPS webhook (JSON), SMPP 3.4 deliver_sm, portal inbox |
| Latency | Typically under 2 seconds from handset to webhook |
| Routing | Keyword, regex, sender, time window, session; auto-replies |
| Inbox | Threads, queues, assignment, canned replies, notes, SLA timers |
| Bot integration | REST in/out, context passing, handover API to agents |
| Encoding | GSM-7 and UCS-2; concatenated messages; MMS on US/CA numbers |
| Compliance | Opt-in/opt-out keywords, 10DLC registration, GDPR retention |
| Support | 24×7 NOC; P1 response ≤ 15 min; named account manager |
Talk to Dollu about Two-Way SMS
Send us your destinations, volumes, sites or use case and we will return a proposal, pricing and a technical plan within one business day. Test credentials and the full service description and SLA document are available on request.
- Sales
- [email protected]
- Phone
- +91 777-500-2222
- Web
- dollu.com
- NOC
- [email protected] · 24×7
Dollu Ltd · 2403A, Iconic Corenthum, Sector 62, Noida 201301, India. This sheet summarises the standard service; specifications may vary by country and are confirmed in the service order.
Online version: https://dollu.com/services/messaging/two-way-sms
Contact: https://dollu.com/contact?service=two-way-sms