US phone numbers for global call centers. Get local and toll-free DIDs for your offshore BPO operations with carrier-grade SIP trunking optimized for international routes.
Everything your international call center needs to serve US customers professionally.
Local numbers in every US area code plus toll-free 800/888/877 numbers. Your international agents present a US presence to callers.
Optimized network paths to major BPO markets. Our infrastructure is tuned for the best possible audio quality on international routes.
Support for bandwidth-efficient G.729 (8 kbps) and high-quality G.711 (64 kbps). Automatic codec negotiation for optimal quality.
Connect via SIP registration (username/password) or IP authentication (static IP whitelist). Both methods supported simultaneously.
All international accounts go through business verification. This protects our network integrity and ensures STIR/SHAKEN compliance for your calls.
Round-the-clock technical support from engineers who understand international SIP configurations, NAT traversal, and codec optimization.
Optimized SIP trunking for the world's major BPO markets across 17 countries. Select your region for country-specific details.
Low-latency connectivity with US time zone alignment. G.711 codec recommended for all nearshore routes.
Leading nearshore BPO destination. Bogota, Medellin, Barranquilla hubs.
40-80ms latency · G.711Premium nearshore hub with highly educated bilingual workforce.
30-60ms latency · G.711Growing tech and BPO hub. Buenos Aires, Cordoba, Rosario.
50-100ms latency · G.711Largest economy in Latin America. Sao Paulo, Rio, Curitiba hubs.
60-120ms latency · G.711Caribbean nearshore with strong US cultural ties. Santo Domingo hub.
30-60ms latency · G.711Growing Central American BPO destination. Guatemala City hub.
30-70ms latency · G.711Emerging nearshore BPO market. San Pedro Sula, Tegucigalpa.
35-75ms latency · G.711The world's largest BPO markets. G.729 codec recommended for bandwidth efficiency on trans-Pacific routes.
World's largest BPO market. Bangalore, Hyderabad, Mumbai, Delhi NCR.
180-250ms latency · G.729#1 offshore call center destination. Metro Manila, Cebu, Clark.
150-220ms latency · G.729 / G.711Multilingual BPO hub in Southeast Asia. Kuala Lumpur, Cyberjaya.
160-240ms latency · G.729Fast-growing outsourcing destination. Ho Chi Minh City, Hanoi.
170-250ms latency · G.729Multilingual BPO markets with strong technical talent. G.711 recommended for Western routes, G.729 for Eastern.
English, French, and Arabic-speaking BPO markets with dual US/EU time zone coverage.
Major English-speaking BPO destination. Cape Town, Johannesburg.
200-300ms latency · G.729Multilingual BPO market (Arabic, English, French). Cairo, Alexandria.
150-220ms latency · G.729Francophone BPO hub serving US and European markets. Tunis, Sfax.
140-210ms latency · G.729Get your international call center connected with US numbers in four steps.
Create your IPComms account through our online portal. No contracts or minimum commitments required.
Complete our business verification process. This ensures network integrity and STIR/SHAKEN compliance for your calls.
Choose local DIDs from any US area code and/or toll-free numbers. Numbers are provisioned instantly.
Configure your PBX with our SIP credentials. We support Asterisk, FreeSWITCH, 3CX, and all standard SIP platforms.
One of the longest-operating SIP trunk providers in the US
Uptime SLA with geo-redundant US infrastructure
Technical support from real SIP/VoIP engineers
Yes. International call centers and BPOs can obtain US local and toll-free numbers through IPComms. These numbers are delivered via SIP trunking, allowing your offshore agents to make and receive US calls as if they were located in the United States. Business verification is required for all international accounts.
For international SIP trunking, G.729 is recommended for bandwidth-constrained routes as it uses only 8 kbps per call. G.711 (ulaw/alaw) provides the best audio quality at 64 kbps per call and is ideal when bandwidth is sufficient. IPComms supports both codecs and can negotiate the optimal codec automatically based on your connection quality.
Typical round-trip latency for international SIP calls varies by region: Americas/nearshore (Colombia, Costa Rica, Dominican Republic) 30-80ms, Europe (Poland, Romania, Ukraine) 100-190ms, Asia-Pacific (India, Philippines, Malaysia, Vietnam) 150-250ms, and Africa/Middle East (South Africa, Egypt, Tunisia) 140-300ms. IPComms optimizes routing to minimize latency, and calls remain high quality up to 300ms round-trip when using appropriate codecs and jitter buffers.
No, you do not need a US office. IPComms provides US SIP trunking to verified international businesses. You will need to complete a business verification process that confirms your company identity and intended use. This process protects against fraud while making US numbers accessible to legitimate international BPO and call center operations.
Get US phone numbers and carrier-grade SIP trunking for your offshore operations. No contracts, no minimums.