Register your CallGlobal line in a SIP client
Short answer: A SIP client needs the line credentials from your dashboard and permission to use your microphone. Install your preferred client, add an account and enter the supplied server, username and password exactly.
Use UDP or TCP on port 5060 where appropriate, or TLS on 5061 when configured. The supported audio codecs are G.711 PCMU and PCMA; keypad tones use RFC 2833 or SIP INFO.
Put the number to work
Check registration before testing audio. If registration succeeds but one side is silent, inspect the device permissions, firewall and NAT handling rather than changing the account password at random.
From selection to daily use
- Create your CallGlobal account using an email you can continue to access.
- Review the live country inventory and confirm the capabilities of the line you select.
- Choose the rental term, check the total and follow the payment instruction without rounding its amount.
- After activation, use the inbox and dialer or configure your SIP client; keep the line renewed if future access matters.
Fund the order carefully
Choose the coin and network offered by the payment screen before sending funds. CallGlobal accepts supported USDT and USDC routes; the checkout determines which routes are currently available. Transfer the complete displayed amount, including every decimal place.
A transfer with a different amount does not qualify for wallet credit. Never round a payment or subtract a withdrawal fee from it. If a transaction needs investigation, send support its hash and network without making another payment.
The CallGlobal service behind the number
A line includes incoming SMS and incoming calls without a quantity cap, together with a monthly allowance of 500 sent texts and 1,000 outbound voice minutes. Use the online inbox, browser dialer, forwarding or the SIP credentials supplied for that line.
The advertised annual option works out to $1.80 a month, with $21.60 charged for the year. Live checkout shows the selected term and total; renewals draw from the prepaid account wallet.
During the first 7 days you may exchange a number within its country up to twice without an extra rental charge; its existing expiry date stays in place. A separate 7-day refund option applies only when no incoming or outgoing call or SMS has used the line.
The subscription in detail
- No monthly cap on inbound SMS or calls
- Outbound allowance: 500 SMS and 1,000 minutes each month
- SIP settings, forwarding controls and browser calling interface
- Renewable access to your selected line
- External account verification depends on the receiving platform
- First 7 days: up to 2 eligible no-cost replacements
- Refund eligibility for a line with no SMS or call usage within 7 days
The annual-plan equivalent starts at $1.80 per month, totaling $21.60 for the year. Wallet funding uses USDT or USDC and requires the exact displayed amount. Crypto payments are reviewed before credit.
Number activation requires availability confirmation. Please contact support before funding your account.
Frequently asked questions
What should I check before ordering?
Use UDP or TCP on port 5060 where appropriate, or TLS on 5061 when configured. The supported audio codecs are G.711 PCMU and PCMA; keypad tones use RFC 2833 or SIP INFO.
How will I manage the line after activation?
Your account dashboard provides the number controls and SMS inbox. Calls can use the browser dialer, compatible SIP software or the forwarding setting.
Can I keep using the same contact number?
Yes, while the rental remains renewed. Check the paid-until date and maintain the wallet balance needed for the next selected term.
What if the line is unsuitable?
Within 7 days of purchase, request up to two free same-country exchanges. The unused-number refund is separate and requires that no call or SMS has used the line.
Related guides and use cases
- CallGlobal SIP dialer overview
- Zoiper setup guide
- MicroSIP setup guide
- Asterisk trunk setup
- fix SIP registration and audio problems
- calling from your browser with the web dialer
- what a SIP number is
- choose a phone number by country
- pricing for every number type
- G.711 codec explained
- Your Spanish contact number, wherever you work
- Your Brazilian contact number, wherever you work
- Your Mexican contact number, wherever you work
- Your Hong Kong contact number, wherever you work
Related countries
- United States phone number (+1)
- United Kingdom phone number (+44)
- Canada phone number (+1)
- Germany phone number (+49)
- Australia phone number (+61)
- India phone number (+91)
Sources
- IETF RFC 3261: SIP: Session Initiation Protocol (as of September 2026)
- IETF RFC 3551: RTP Profile for Audio and Video Conferences (PCMU/PCMA payload types) (as of September 2026)
- IETF RFC 4733: RTP Payload for DTMF Digits (successor to RFC 2833) (as of September 2026)
- Zoiper: softphone for desktop and mobile (as of September 2026)
- MicroSIP: open-source portable SIP softphone for Windows (as of September 2026)
- Linphone: open-source SIP softphone (as of September 2026)