SIP trunks cut per-min cost 60-80% vs cloud telephony at scale. We procure trunks from Indian carriers (Tata Tele, Bharti, etc.), configure SBC/PBX, optimize codecs, and integrate with your voice agent or PBX. ₹50K Standard to ₹1.5L+ Enterprise.
₹50,000
Standard SIP setup
₹1,50,000+
Enterprise multi-region
60-80%
Cost reduction vs cloud
2-4 weeks
Delivery (incl. carrier paperwork)
Pricing scales with channels + redundancy. 40% deposit, 60% on delivery.
Company making 50K outbound calls/month, average 3 min/call
On Twilio: 50K × 3 min × ₹4/min = ₹6L/month
On Exotel: 50K × 3 min × ₹1/min = ₹1.5L/month
On SIP trunk: 50K × 3 min × ₹0.30/min = ₹45K/month + ₹15K trunk rental = ₹60K total
SIP saves ₹90K/month vs Exotel, ₹5.4L/month vs Twilio
Setup cost: ₹95K Production = pays back in <2 months at scale
Annual savings: ₹10L+ vs Exotel, ₹65L+ vs Twilio
SIP wins at >25K calls/month — economics favor SIP at scale
SIP wins for enterprises with existing PBX (Avaya, Cisco, FreePBX)
SIP wins for BFSI/Healthcare needing PCI/HIPAA compliance + audit
Cloud (Twilio/Exotel/Plivo) wins at low volume (<10K calls/month)
Cloud wins for distributed teams without IT to manage SBC
Cloud wins when you need integrated SMS/WhatsApp/voice in one platform
Verdict: pick SIP if volume is high + you have IT resources to operate
Identify best carrier (Tata Tele, Bharti, TPGB, wholesale). Negotiate per-min + monthly. Sign paperwork.
Session Border Controller setup (Kamailio, OpenSIPS, FreeSWITCH, or commercial SBC). Security + NAT traversal.
Phone numbers from carrier. Local DIDs across states. Toll-free + premium.
G.711 / G.729 / Opus selection based on quality vs bandwidth trade-off. Voice agent tuning.
Asterisk, FreePBX, FreeSWITCH, 3CX, Avaya, Cisco — we configure on your existing PBX.
Dual-carrier setup. If primary fails, calls re-route to secondary. Zero downtime.
Channel utilization, MOS scores, drop rates, jitter — dashboards for ops team.
TRAI DLT for outbound. PCI/HIPAA recording. Audit logging.
Vapi, Retell, Bolna, Bland, Edesy — wired to SIP trunk via SIP REGISTER or static routes.
Same expertise across every major provider. Pick the one that fits.
Overview of all telephony service offerings.
Twilio account, numbers, India routing, AI integration.
India-specialist provider — virtual numbers, DLT compliance.
Plivo India setup, SIP trunking, voice agent integration.
Enterprise SIP trunking — codec, redundancy, compliance.
Cost-optimization migration. 60-80% bill reduction typical.
Book a 30-min discovery call. We'll model your savings + send a quote within one business day.