US phone numbers for the #1 offshore call center destination. Carrier-grade SIP trunking with trans-Pacific routing optimized for Philippine BPOs in Metro Manila, Cebu, Clark, and Davao.
Everything your Philippines-based call center needs to serve US customers with a professional local presence.
Local numbers in every US area code plus toll-free 800/888/877/866/855/844/833 numbers. Your Philippine agents present a US presence to callers with full caller ID control.
Optimized routing across the Pacific with 150-220ms typical latency. Our infrastructure is tuned for the best possible audio quality on Philippines-US routes.
G.729 recommended for bandwidth efficiency at 8 kbps per call. G.711 (ulaw) delivers superior audio quality at 64 kbps when bandwidth allows. Automatic codec negotiation supported.
Connect via SIP registration (username/password) or IP authentication (static IP whitelist). Both methods supported simultaneously for flexible deployment across PH data centers.
All outbound US calls from your Philippine call center are signed with STIR/SHAKEN attestation. This ensures your calls are not flagged as spam and maintains high answer rates.
Round-the-clock technical support available during Philippine Standard Time (GMT+8). Engineers who understand trans-Pacific SIP configurations, NAT traversal, and codec optimization.
IPComms powers Philippine call centers across the most in-demand BPO verticals.
The Philippines is the #1 destination for voice-based customer support. Filipino agents are known for excellent English proficiency, cultural affinity with US consumers, and strong empathy skills.
The Philippines has a growing tech support vertical with a workforce skilled in IT troubleshooting, software support, and technical documentation for US-based technology companies.
Philippine BPOs handle medical billing, patient scheduling, insurance verification, and healthcare customer service for US providers. HIPAA-aware voice connectivity is critical.
The Philippines has established itself as the world's leading offshore destination for voice-based customer service. With a highly educated, English-speaking workforce and strong cultural alignment with the US, Philippine BPOs handle millions of customer interactions daily for American businesses.
The IT-BPM industry in the Philippines employs over 1.4 million professionals and continues to grow as one of the country's largest economic sectors. The combination of competitive labor costs, English proficiency, and round-the-clock operations makes the Philippines the top choice for voice outsourcing.
Metro Manila: Makati CBD, Bonifacio Global City (BGC), Ortigas Center - the largest concentration of BPOs in the country
Cebu IT Park: The second-largest BPO hub, known for competitive costs and a deep talent pool in the Visayas region
Clark Freeport Zone: Growing BPO hub in Central Luzon with PEZA-registered IT centers and expanding infrastructure
Davao: Emerging BPO destination in Mindanao offering lower operational costs and an expanding workforce
Offshore voice destination worldwide
IT-BPM industry employees
Philippine Standard Time
English literacy rate
Optimized SIP trunk configuration for Philippine BPO environments.
G.729 (8 kbps) for bandwidth efficiency on shared or limited connections. G.711 ulaw (64 kbps) for best audio quality when bandwidth allows. Both negotiated automatically.
150-220ms typical round-trip latency from Philippines to US. Calls remain high quality within this range using proper jitter buffer configuration (60-120ms recommended).
SIP registration (username/password) for dynamic IP environments. IP authentication (static IP whitelist) for dedicated data center connections. Both supported simultaneously.
IPComms SIP trunks work with all standard SIP platforms popular in Philippine call centers and BPOs:
Popular PBX platform in Philippine BPOs. Full SIP trunk integration with easy web-based configuration.
Native SIP trunk support with PJSIP or chan_sip. Configure via GUI (FreePBX) or CLI. Widely deployed across PH call centers.
High-performance SIP trunk integration for large-scale Philippine operations. Supports thousands of concurrent calls with proper hardware.
Philippine call centers can obtain US local and toll-free numbers through IPComms SIP trunking. After completing business verification, you receive SIP credentials to connect your PBX platform (Asterisk, FreeSWITCH, 3CX, or any SIP-based system) to our US network. Your Philippine-based agents can then make and receive calls using US numbers, presenting a local US presence to callers.
Typical round-trip latency from the Philippines to the US ranges from 150-220ms depending on your location and internet provider. Metro Manila and Cebu IT Park generally achieve the lowest latency due to better international fiber connectivity. IPComms optimizes trans-Pacific routing, and calls remain high quality at these latency levels when using G.729 or G.711 codecs with proper jitter buffer configuration.
IPComms works with all standard SIP-compatible platforms commonly used by Philippine BPOs, including Asterisk, FreeSWITCH, 3CX, and FreePBX. We support both SIP registration and IP authentication, so any SIP-compliant platform can connect to our trunks.
Yes. Philippine BPOs can use US toll-free numbers (800, 888, 877, 866, 855, 844, 833) through IPComms. Toll-free numbers allow US customers to call your Philippine-based agents at no cost to the caller. These numbers are delivered via SIP trunking and work identically to US-based toll-free service. Business verification is required for all international toll-free accounts.
Get US phone numbers and carrier-grade SIP trunking for your Philippines BPO operations. No contracts, no minimums.
SIP trunking solutions for call centers worldwide.