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What's new in MR129
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Stop/resume receiving hunt group calls
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Route emergency calls passing user location data from MS Teams and other endpoints that support PIDF-LO
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Support of STIR/SHAKEN standards
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Service policy configuration for ringback tone generation and early media relaying
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Choosing UDP or TCP protocol based on SIP message size
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Delivering calls to customers with redirect servers
Simultaneous call limit for off-PBX calls
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Enabling product self-activation by a customer
Keepalive call monitoring
Limiting per-account simultaneous calls on a product
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User authentication
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Binding a user session to an IP address
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Transcoding and transrating
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Voice calls processing
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Calls from vendor via SIP
Number translation
Automated removal of the "+" prefix
Understanding SIP call routing
Video calls via SIP
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PortaSIP error codes
Service announcements via the media server
Active call monitoring
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Real-Time Text (RTT) for accessible communication
Add account identification to P-Charge-Info SIP header
Integration with Mida Queue Manager
SIP identity
Support for privacy flags
SIP TAPI
Special prompt for calls to ported number
Caller ID (CNAM) lookup
“Diversion” removal on multiple call forwarding
API for computer-telephony integration services
Call control from external apps in site-redundant PortaSwitch
Process call events (connected, queued, etc.) for calls initiated via an auto-dialer app
Auto-provisioning IP phones
Self-provisioning of programmable phone keys by customers
Self-provisioning of corporate phone books by customers
Successful SIP phone activation greeting
Bandwidth-aware limitation on concurrent calls permitted
Fax transmission-supported codecs
2nd number service
Ability to speed up the voicemail message notifications
Voice service configuration on PortaSIP (cloud PBX, SIP trunking, etc.)
Advanced features
Fax transmission-supported codecs
Fax transmission-supported codecs
Link copied to clipboard
May 13, 2026
1 minute to read
This page for the latest version (MR131)
PortaSIP supports high-quality fax transmission in the following codecs:
T.38
G.711 (G.711a and G.711u)
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