Philippines: SIP providers and connecting a number to the PBX

This page continues the general guide to connecting a provider's number to the PBX, which covers everything that is the same in any country — the two trunk modes, what to ask the operator, what to enter in the form, network and compatibility and the connectivity check. Here we cover what is specific to the Philippines: why a trunk from a major telco will never reach your cloud PBX, who to buy a number from instead, what to ask (almost nobody in the country publishes their parameters) and why call recording needs particular care here.

The data was collected on 10 September 2026 from provider websites, regulator documents (NTC), Philippine law and PBX vendor certification tables; links are in the "Sources" section.

In brief#

• A dedicated PBX can be created for Philippine locations. Internet telephony has been legal in the Philippines since 2005: the regulator, the NTC, classified it as a value-added service ("VOIP shall be classified as a Value Added Service"). It is the provider selling the service that must register with the NTC, not the venue.
• ⚠️⚠️ The main local pitfall is call recording, not technology. Republic Act 4200 prohibits recording a conversation without the authorisation of all of its parties (six months to six years in prison), and the Supreme Court has ruled explicitly that a participant who records the other party without their knowledge is also a violator. Turn on the voice recording notice and work out with a lawyer how the other party can decline — details in "Rules and paperwork".
• ⚠️⚠️ A trunk from PLDT or Globe will not reach a cloud PBX. The telcos sell SIP trunks over their own access network, and the addresses of their servers cannot be reached from the internet. What works are internet telephony providers: Cloudpinas (registration, declared compatibility with Asterisk and FreePBX), B'yond Platforms (IP authentication, published codecs), AlienVoIP Philippines (registration, published prices) — or an international provider with a Philippine number.
• ⚠️ No local provider publishes a server address. The "SIP host" field is filled in from the email with the trunk credentials; codecs and the number format also arrive only by correspondence.
• ⚠️ Manila numbers break the seven-digit match. The first digit of an eight-digit Metro Manila number identifies the operator, and that is exactly the digit that gets cut off: the PBX cannot tell +63 2 8123 4567 from +63 2 7123 4567.
• Paperwork: a Philippine business needs SEC (corporation) or DTI (sole proprietor) registration and an address within the number's area to get a landline number.

Numbers in the country#

• Country code — +63, national prefix — 0, international access — 00.
• Metro Manila — area code 2, 8-digit subscriber number (since 6 October 2019; previously 7). Eight-digit numbers also apply in neighbouring Rizal, San Pedro Laguna and Bacoor Cavite. The first digit of the number is the operator code:

• Provinces — two-digit area codes and a 7-digit number: Cebu +63 32, Davao +63 82, Baguio +63 74, Iloilo +63 33.

• Mobile numbers — always 10 digits after the country code: 09XX XXX XXXX domestically, +63 9XX XXX XXXX in international format.

• Toll-free — 1-800-1-XXX-XXXX. Emergency number — 911, government complaints — 8888.

• In "Lines" enter the number the way the provider issued it (+63 2 8123 4567 or 02 8123 4567): the PBX matches the last seven digits, so writing it with +63 or with 0 makes no difference.

• ⚠️ The seven-digit trap — the Philippines has three cases at once:

  • Manila: +63 2 8123 4567 (PLDT) and +63 2 7123 4567 (Globe) share the tail 1234567 — the "operator digit" is exactly what gets cut off, and since everyone kept their old seven-digit number when the switch to 8 digits happened, such pairs are common;
  • mobile: +63 917 450 2380 and +63 995 450 2380 — both 4502380;
  • provinces: +63 32 250 1234 (Cebu) and +63 82 250 1234 (Davao) — both 2501234.

  Do not add numbers to one account that differ only in this way — a "this number → this scenario" rule cannot tell them apart.

• Ask the provider in what form the number arrives in an incoming call. Local providers do not publish the format; retail offers show the number as +63 02 XXX XXXX, while international providers usually send international format with a plus.

• Dialling out: within your own area — the subscriber number; to another area — 0 + area code + number; to a mobile — 0 + 10 digits; abroad — 00 + the number in international format.

Who provides a number with a SIP trunk#

Cloudpinas — Asterisk compatibility and an instant number#

The Philippine arm of the regional Cal4Care group (office in Quezon City), built for the call volumes of Philippine contact centres. The only local provider that explicitly declares cross-vendor compatibility: "SIP trunks certified with 3CX, Asterisk, Avaya, Cisco, FreePBX and Grandstream", with no extra hardware required. Numbers are ordered online and "activated immediately"; according to the provider as of 10.09.2026 a Philippine number costs ₱1,200 one-off and ₱1,200 a month (a Singaporean or Malaysian one from the same provider costs ₱300 — this reflects the local regulatory barrier, not a mark-up). Call logs are kept in the portal for 90 days.

What to enter in the admin panel (Telephony → "Trunks & pairings" → "Add provider"):

What to set up with the provider: describe your PBX and call volume to the manager — the trunk is sized to them → request a trunk on UDP with G.711 a-law/u-law and say plainly that our PBX does not accept TLS/SRTP encryption on trunks → order a Philippine number for the city you need and point it to the trunk → pass on the "Static IP" from the "Server" tab → ask in what form the number arrives in an incoming call and how many simultaneous calls a number allows.

Pitfalls ⚠️

• Agree the trunk location explicitly. Calls are routed "to the nearest regional data center" of the group — it is easy to end up on a Singapore site, and with it someone else's rates and the wrong caller ID.
• There are no public Asterisk guides — their guides section covers other products; take all parameters from the email.
• The description mentions TLS and SRTP. This is not a mandatory mode, but if you are sent an encrypted-only trunk, ask for plain UDP.

Sources: Cloudpinas — SIP Trunks · Cloudpinas — DID Numbers · Cloudpinas — FAQ — 10.09.2026.

B'yond Platforms — IP authentication and published codecs#

A Singapore B2B platform (B'yond Platforms Pte Ltd): voice, messaging and phone numbers "under a single contract". For the Philippines it is the only provider in Yeastar's certification table — and the only one whose parameters are published at all: trunk type "Port Based" (authentication by address, no registration), codecs u-law, a-law, G.729a, DTMF RFC 4733 (RFC 2833). G.711 and the DTMF method match what our PBX accepts. There is no self-service: the number and the trunk go through sales, and prices and document requirements are not published on the website.

What to enter in the admin panel

What to set up with the provider: pass on the "Static IP" from the "Server" tab for their whitelist → ask them to enable G.711 a-law/u-law (we do not have G.729: if only that is negotiated, there will be no audio) → make sure media goes to UDP ports 10000–20000 on our address → point the Philippine number to the trunk → agree in what form the number arrives in an incoming call.

Pitfalls ⚠️

• Incoming calls are identified by the host. If the address calls come from does not match the "SIP host" you entered, the PBX will not recognise the provider. Ask B'yond for the full list of addresses they call from.
• Philippine number, Singapore provider. Check which caller ID the other party will see and whose rates apply to outgoing calls.
• The provider's own website has no technical pages — everything above comes from the PBX vendor's table; re-check the parameters when connecting.

Sources: Yeastar — certified SIP providers in the Philippines · B'yond Platforms — 10.09.2026.

AlienVoIP Philippines — published prices in pesos#

The Philippine storefront of the Malaysian provider AlienVoIP (website eleave.ph): a trunk "over internet connections rather than traditional phone lines" for "any SIP-compatible IP-PBX or device", with setup usually taking 1–2 business days. The only local offer with prices on the website (according to the provider as of 10.09.2026): Starter ₱999 a month for 2 simultaneous calls, Business ₱2,799 for 10, Enterprise on request; a minute within the Philippines (landline and mobile) ₱10.99; a Manila, Cebu or Davao number — ₱3,499 a month. The mode follows from the description: on activation you receive "username, password, registrar, codec, and network settings" — that is registration.

What to enter in the admin panel

What to set up with the provider: confirm G.711 a-law/u-law in writing before paying → add the PBX "Static IP" to the allowed addresses → order a number for the city you need and point it to the trunk → raise the simultaneous-call limit if two (Starter) is not enough.

Pitfalls ⚠️

• ⚠️⚠️ Codecs are the main risk. In the PBX vendor's certification AlienVoIP was tested only with GSM, G.729 and iLBC, and G.711 is not on the list. Our PBX speaks G.711 and G.722: without a common codec the trunk will register, but there will be no audio.
• Everything is controlled by address and limits. The portal shows rejection codes such as "128 IP Not allowed" and "126 Exceed Line Call Limit" — agree the address and the number of channels in advance.
• This is a reseller. Under NTC rules, a reseller of internet telephony must have its own registration and a contract with a registered provider — ask for proof of registration (COR).

Sources: eleave.ph — SIP Trunking Solutions for Philippines Businesses · Yeastar — certified SIP providers in Malaysia — 10.09.2026.

More providers: parameters only under contract#

These companies do offer a trunk to your own PBX, but they publish neither the server address, nor the mode, nor the codecs — everything is issued after signing. There is no "what to enter" table here: fill in the form from the sheet you receive, and take your questions from "What to ask the provider".

• TELNOVO Communications — a local provider since 2013, a 3CX partner. It sells "A-Z SIP Trunking", international virtual and toll-free numbers "for your hosted PBX or your own SIP enabled device" — so a trunk to someone else's PBX is provided for. Orders go only through a quote request form. Ask about the mode (registration or by IP), G.711 codecs, the number of channels and proof of NTC registration.
• VoiPhy (OpenSourcePH) — a Manila integrator of Asterisk and FreePBX that also resells a trunk from two suppliers whose names are "to be disclosed when project starts". Published guidelines: an option with a $20 number and up to 150 simultaneous calls (inbound $0.0298, outbound $0.1056 per minute), or an option with a $40 number and 10 channels (+$40 for each additional one). The number is shown as +63 02 XXX XXXX (PLDT/Globe) or mobile. ⚠️ An intermediary on top of an intermediary: insist on the supplier's name and registration, otherwise it is unclear who handles an outage.

Telcos: a trunk only over their own network#

• PLDT Enterprise — SIP Business Lines. The largest operator (together with Smart, about 58 % of the market) sells a trunk "for your existing PBX or Unified Communications Platform", but only through a manager, under contract and over its own network. ⚠️⚠️ The addresses PLDT issues for the trunk are, in integrators' experience, unreachable from the internet, and local practice is to put a session border controller (SBC) on site between the PBX and the telco's trunk. Such a trunk will not reach a PBX in the cloud. If a PLDT number is a must, there is only one route — a gateway at the venue that holds the telco line and registers on our PBX. The first question for the manager: "Do you provide a trunk to a public IP in the cloud, without your line and your equipment?"
• Globe Business. Its business telephony section lists "IP-PBX, SIP Trunk, and Hosted PBX", but the website does not open from our network, so the terms could not be checked. The expected model is the same as PLDT's (a trunk over its own access). Ask the manager the same question; Globe landline numbers in Manila start with 7.
• Converge ICT. A fibre provider; its telephony is a cloud PBX bundled with internet access, and there is no separate "trunk to your PBX" product on the website. ⚠️ The most common trap: the venue buys telephony instead of a trunk and then cannot connect its own PBX. Ask directly about an "external PBX" mode.
• DITO Telecommunity. A mobile operator (prefixes 89, 99 and part of 92X–94X); no public SIP trunk. Useful as a source of a mobile number — it is connected to the PBX through a GSM gateway, not a trunk.
• Eastern Communications, PT&T, Radius Telecoms, InfiniVAN, Now Telecom. There is no public description of a trunk to someone else's PBX — this means "not verified", not "definitely no". If the venue is already on their line, ask the manager the same first question about a public IP.

International providers with Philippine numbers#

Cards for popular international providers are already in the catalogue when you add a provider — the server address and mode are filled in automatically. What is specific to the Philippines:

• Twilio — local numbers and toll-free 1800. The requirements are the most detailed: a company needs a "Certificate of registration from the Department of Trade & Industry or Securities and Exchange Commission", and the address must be within the area of the number's prefix; a PO Box is not accepted; an individual needs a Philippine ID and a local address. For a toll-free number the address can be anywhere in the world, but the number cannot be used for callback or calling card services.
• Telnyx — local numbers from $45 a month (noticeably more than in most countries), voice and SMS, porting numbers in is offered.
• AVOXI — local numbers for Manila, Davao and Cagayan de Oro plus toll-free; technical parameters and document requirements go through a manager.
• DIDlogic — Philippine numbers, 7 SIP gateways in the region; outbound calls to the Philippines $0.1246 per minute.
• AstraQom — Manila +63 2 and Cebu +63 32 numbers, trunks at $25, $85 or $161 a month, from one to thousands of channels, activation in 1–3 business days (numbers that need local document checks take longer).
• PBX.IM, United World Telecom / Global Call Forwarding, CommPeak — sell Philippine numbers and a trunk to an existing PBX (United World Telecom — from $48.95 a month for 10 channels with a local number); details from sales.
• DIDWW — there is no separate Philippines page in its published coverage; check availability by searching for numbers in the portal.
• ⚠️ A general caveat. An international provider is the fastest route to a working trunk (documented parameters, card payment), but a Philippine landline number will still require an address within the number's area and SEC/DTI registration, and the number costs several times more than in neighbouring Southeast Asian countries.

Number porting#

• Mobile numbers are portable by law. The Mobile Number Portability Act (RA 11202) was signed on 8 February 2019, and the NTC rules have applied since July 2019: porting is free, including switching between prepaid and postpaid.
• The portability law does not cover landline numbers — it is written for mobile operators. Whether a landline number can be moved to an internet provider, check with both the old operator and the new provider. AlienVoIP Philippines promises "Easy number porting" — ask what exactly gets ported.
• Plan a number change with a period of parallel operation: keep the old number and forward it to the new one while the signage, business cards and directory listings are updated.
• Register the number to the company, not to an employee — a number registered to a person will leave with them.

Rules and paperwork#

If it does not work#

1. The telco issued credentials, but "Test connection" fails. Most likely it is a PLDT or Globe trunk: its addresses live inside the telco's network and cannot be reached from the cloud. You need a provider that works over the public internet.
2. The call connects, but there is silence one or both ways. Codecs. AlienVoIP's certification does not list G.711 at all, and B'yond offers G.729 alongside G.711. You need G.711 a-law/u-law or G.722 — enabled on the provider's side.
3. B'yond: no incoming calls, although the number points to the trunk. The provider calls from an address that is not in the "SIP host", or our "Static IP" is not on their whitelist. Ask for the list of their addresses and compare.
4. Incoming calls go to the wrong line. Compare the last seven digits: Manila numbers of different operators, mobile numbers with different prefixes and provincial numbers from different areas share tails (see "Numbers in the country"). Also ask in what form the provider sends the number.
5. Outgoing calls are rejected. It is almost always the caller ID or the address: leave "Show as" empty and check that the PBX address is allowed (AlienVoIP rejects with "IP Not allowed").
6. Calls drop on the third simultaneous conversation. AlienVoIP Starter has only two channels; the limit shows up as the "Exceed Line Call Limit" rejection. Raising it is up to the provider.
7. The caller ID or rates are "not Philippine". At Cloudpinas the trunk may have landed on a site in another country of the group — ask them to move it to the Philippine one.

General causes that do not depend on the country — "If calls do not go through".

Frequently asked questions#

Which provider should I start with?#

With Cloudpinas if you want a local provider: it declares compatibility with Asterisk and FreePBX, and a number is activated right after purchase. B'yond Platforms — if IP authentication suits you: it is the only provider whose codecs and mode are published. AlienVoIP Philippines — if clear prices matter, but only after written confirmation of G.711. Without a Philippine company, the fastest route is a number from an international provider.

Why can't I just take a trunk from PLDT or Globe?#

Because they sell trunks over their own access network: the addresses of their servers cannot be reached from the internet, and a PBX in the cloud will not get to them. If a telco number is a must, the only route is a gateway at the venue that holds the telco line and registers on our PBX. Before signing a contract, ask the manager whether they provide a trunk to a public IP in the cloud.

Can I record calls with guests?#

Only with the authorisation of all parties to the conversation: RA 4200 makes recording without consent a criminal offence, and that applies to a person who takes part in the conversation too. Turn on the voice recording notice in the location settings and discuss with a lawyer how a guest can decline. Recordings and transcripts are also personal data under the Data Privacy Act.

Do I need a Philippine company?#

For a landline number — in practice, yes: providers ask for SEC or DTI registration and an address within the area of the number's code, and a PO Box is not accepted. A foreign company can get a toll-free number from an international provider — for that, the address can be in any country.

Does 911 work through the PBX?#

Do not count on it: none of the providers on this page promises access to 911 from its trunk. Ask the provider before connecting and keep an ordinary mobile phone at the venue for emergency calls.

Will I keep my number if I change provider?#

A mobile number — yes, porting is free by law. The law does not provide for mandatory porting of landline numbers — check with the old operator and plan the switch with the old and new numbers running in parallel.

Sources#

All links checked on 10.09.2026.

Regulator and law

• NTC Memorandum Circular No. 05-08-2005 "Voice over Internet Protocol": https://elibrary.judiciary.gov.ph/thebookshelf/showdocs/10/49227
• NTC Memorandum Order No. 3-11-2005 — registration of internet telephony providers and resellers (PDF): https://region7.ntc.gov.ph/wp-content/uploads/2024/01/MC_3-11-2005.pdf
• Republic Act No. 4200 (Anti-Wiretapping Law): https://lawphil.net/statutes/repacts/ra1965/ra_4200_1965.html
• Ramirez v. Court of Appeals, G.R. No. 93833 — case summary: https://jur.ph/jurisprudence/summary/ramirez-v-court-of-appeals-15093
• Republic Act No. 11202 (Mobile Number Portability Act): https://lawphil.net/statutes/repacts/ra2019/ra_11202_2019.html
• Executive Order No. 56 (2018) — the single 911 number: https://lawphil.net/executive/execord/eo2018/eo_56_2018.html

Numbering

• Twilio — Important Change to the Philippines Local Numbering Plan: https://www.twilio.com/en-us/blog/company/communications/change-philippines-local-numbering-plan
• Inquirer Business — the switch to eight-digit numbers in Metro Manila: https://business.inquirer.net/280094/globe-bayan-to-implement-8-digit-landline-number-in-mm-neighboring-areas-by-october-6-2019

Providers

• Cloudpinas — SIP Trunks: https://cloudpinas.com/sip-trunks
• Cloudpinas — DID Numbers: https://cloudpinas.com/did-numbers
• Yeastar — certified SIP providers in the Philippines: https://www.yeastar.com/itsp-partners/philippines/
• Yeastar — certified SIP providers in Malaysia (AlienVoIP codecs): https://www.yeastar.com/itsp-partners/malaysia/
• eleave.ph (AlienVoIP Philippines) — SIP Trunking: https://www.eleave.ph/sip-trunking.php
• TELNOVO — A-Z SIP Trunking: https://www.telnovo.net/services_sip_trunking/
• VoiPhy — SIP Trunk: https://www.opensourceph.com/sip-trunk.html
• PLDT Enterprise — SIP Business Lines: https://pldtenterprise.com/enterprise/products/communication-collaboration/communication/sip-trunks
• Globe Business — Non-Traditional Line Solutions: https://www.globe.com.ph/business/connectivity/voice/non-traditional-lines
• Converge ICT — Enterprise: https://www.convergeict.com/enterprise
• Kital — enterprise VoIP security hardening (an SBC between the PBX and the telco trunk): https://www.kital.com.ph/enterprise-voip-security-hardening-controls/

International providers

• Twilio — Philippines regulatory guidelines: https://www.twilio.com/en-us/guidelines/ph/regulatory
• Telnyx — Philippines: https://telnyx.com/global-coverage/philippines
• AVOXI — Philippines SIP trunks: https://www.avoxi.com/philippines-sip-trunk/
• DIDlogic — Philippines: https://didlogic.com/international/philippines/
• AstraQom — Philippines SIP Trunks: https://astraqom.com/en/philippines/sip-trunks
• United World Telecom — Philippines SIP trunking: https://www.unitedworldtelecom.com/services/sip-trunking/philippines-sip-trunking/

Related pages#

• Connecting a provider's number to the PBX — the general steps, trunk modes, network, connectivity check.
• SIP phone setup — how to connect desk phones and DECT handsets to extensions.