The Philippines is a major growing sms market but one which has many problems associated with message delivery. Carriers are implementing more and more spam filters to prevent A2P traffic reaching their network via international SS7 routes and large amount of messages on these cheaper routes are being blocked. Additionally, spam filters often return fake delivery receipts and do not discriminate between spam and legitimate traffic.
Note: “ANNOUNCEMENT - Blocking of Generic Sender ID's towards Philippines” Telecos will implement blocking for transactions from the common Generic Sender ID's, which have been frequently used by attackers to send phishing SMS. Hence its recommended to register your own Brand SenderID as soon as possible in order to ensure smooth delivery.
Sender ID:
By default Sender IDs are overwritten to a random generic sender or a random numeric to ensure delivery on a best effort basis.
But its recommend , you please register your own Brand Alphanumeric Sender IDs through us by contacting your account manager or by writing to support@Nexmo.com
Please note, as per new policy of Philippines telcos, that requires filled-up LOA(Letter of Authorization) for every request for registration of sender ids in PH.
Content:
SMS phishing attempts lately causing the carriers to express concerns. As such, we have taken steps to ensure suspicious URLs in such SMS content are masked to protect Smart and Globe subscribers. Moving forward, you may request URLs to be whitelisted to ensure they are not masked.
ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz % & ' ( ) * + - . / : ; ! " # < = > ? $ @ 0123456789
Election - any advertisement promoting a candidate for elections
Tobacco - any advertisement promoting the use of tobacco
Other features/restrictions of note:
Delivery Receipts:
Delivery receipts are only Network based DLR hence not reliable. Quality conclusion based on DLR ratio are inaccurate.
Links:
Global SMS Features Overview (Outbound only)
Global SMS Numbers Features Overview
